I suck at triangles, helpp?

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

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?

Find the value of x to the nearest tenth.