Can someone please check my answers? I'm not sure if i completed these questions with the correct pronouns. (español)

Find the sum and express it in simplest form.(-2y3 + 2y2 - 9) + (-4y3 + 5y2 + 7) what is the value of x!? thanks!!! Select the correct answer.How many electrons does a covalent bond consist of?A. oneB. twoC. fourD. eight Why do consumer materials use text features, such as headers? Select all that apply.pls answer for real How many years passed after Copernicus published his book until Galileo began to study planets with the telescope? This is an onion root tip at low power (100x). The cells are too small to distinguish individual phases. What phase do most of the cells appear to be in? In cats produce many different coat colors. Tabby fur color can be produced by AA or Aa, black is aa. Another gene pair is epistatic to the gene for fur color. When present in its dominant form (WW or Ww), this gene blocks the formation of fur color resulting in offspring with white fur (ww offspring have normal fur). Determine the proportions of offspring from the following cross:______. AaWw x AaWw. (Assume no gene linkage). Yellow body color is dominant to blue. Which letter should we use in this problem?a. Yb. B Eiman connects eight 12 lamps in series. What isthe total resistance of the circuit? pennies used to be called coppers. how do you suppose they got this nickname? what is the molarity of 5.63 moles of lithium in 3.25 liters of solution help me pls pls pls What is the value of c? Solve: 1/4 a = 4/15 how do plants use water, air, and light to fulfill their basic needs? 9.3% 1034 What is in scientific notation? 3.1 x 10" Find the domain and range for f(x)=pi cos(x) Do you hear this in the song? in the Neffex - Rumors, From minute 0:00 - 0:11I think the voice is distorted:There's a rumor 'around 'about herThere's a rumor around, be sure They just wanna have itThere's a rumor about that There's also a voice in the background where it says in the minutes: 0:38 - 1:04. 2:21 - 2:43. 3:37 - 4:07: I get to do it, again, oh again, I get to do it, againMaybe the ''e'' is not heard but it should go, do you think it says that or do you hear something different? Jackson wanted to reduce the scope of the government by ending many "___" programs.federalInternationalstatelocalnationalist PLZ HELP ME NOW FOR THIS TEST The excerpt below was written by Henry Stimson in 1941:The atomic bomb was more than a weapon of terrible destruction, it was a psychological weaponWhat did Stimson mean by this statement?A. US leaders had tricked the Japanese into thinking they were more powerful than they wereB. Skillful use of the atomic bomb could force opponents to make concessions.C. The atomic bomb was an ineffective way to end warD. The atomic bomb was not quite as dangerous as many people thought