I just need help with question 4-7. Its my last assignment but I just can't rap my head around it.

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.