Answer:
32
Step-by-step explanation:
2 * (5 + 8 + 3) = 2 * 16 = 32
She began with 20.
If she bought 7 more books and ended up with 17, that means she had ten beforehand. If she had half remaining, we simply double it, thus getting 20.
Answer:
Step-by-step explanation:
Start with:
Distribute the 
into 
:
Combine like terms:
Add to both sides of the equation:
Subtract 
from both sides of the equation:
Divide both sides of the equation by the coefficient of 
, which is 
:
or
Answer:
9 + 11x
Step-by-step explanation:
B=8
6^2+B^2=10^2
36+b^2=100
100-36=64
The square root of 64 is 8
