Maria and Toni are sisters and Jacob and Marcel are brothers . Maria's age plus Toni's age equals 36. Jacob's age plus Marcel's age equals 33. Maria's age plus Jacob's age equals 29 Toni's age is 21. How old is Marcel ? A 14 B. 15 C.19 D. 21

i cant see the graph

step-by-step explanation:

go on the tube you might find some information there

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

answer: the answer is ann