Are these correct? if not please explain what i did wrong.

Question 1 is correct

Question 2, the 2nd and 3rd boxes/answers are incorrect. "A plant measured x inches tall last week and 8 inches tall this week"

8 is how tall the plant is this week

x is how tall the plant is last week

Question 3, it's all equivalent except for option 4, so the only option unchecked is option 4

i understand 100% 10/10 hit or miss?

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.