May someone me out with this some people up here keep on giving me the wrong answer is it anyone up here that is good in math may you me with this question i'm stuck on it

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

What is the factored form of the following expressions? d^2 – 13d + 36

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76