Its a number bank and I trying to solve these and am getting confused.

What is the 12th term of b(n)=-4-2(n-1)

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

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?