216. hope this helps you.
Answer:
B
Step-by-step explanation:
If you unfold it you get shape B
take 16+5=21. 29-21=8 so answer is 8
Answer:
Brother is 70.5 and sister is 64.5
Step-by-step explanation:
you will need to set up a simple equation and give out variables.
Girls age = 6-x
Brother's age= x
the you will take those 2 and add them and place them equal to 135:
6-x+x=135
6-2x+6=135+6
The 6 cancels out
2x=141
2x/2=141/2
x=70.5
The brother's age would be 70.5 then and the girl's would be 64.5
10%
This is because mr Matthews added only 10% to the 80 pounds
