I need help showing my work for the picture I've attached! I already have the answer as you can see below :)

Find an equation for the linear function which has slope -10 and x-intercept -7

For what value of (y) is 3^3/3^y =1/9

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?