Please help, giving brainlist to anyone who answers

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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?