Answer:
25 cm
Step-by-step explanation:
2 tens & 15 ones is equal to 35
Because 2 tens = 20
15 already has a ten so add +10 to 20
30+5 is 35.
It will be c- 20:
4q and 2(q+30) have to equal the same therefore q=30 which makes both these equations equal.
3p + 4q then have to equal 180 as they are on a straight line so you know q=30 so 4x30=120 so 180-120=60
Then 60/3=20 and that is your answer.
Hope this helps :)
The answer is 12. Matthew would be 12 & Elizabeth would be 7. 12+7=19. So C is your answer.