SOMEONE PLS HELP ITS A TEST !!!

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )