Jamal worked 6 hours and packed 9 cartons. korva worked 4 hours and packed 7 cartons. who packed the most cartons per hour?

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?

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Solve for x where 0 equation: cot^2x+2cotx+1=0