This is my final question of this assignment. help me please.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?

X+ y = 5 ; x - y =3 solve using linear combination