To estimate this I find it easy to turn the fractions into decimals and then you can easily estimate. To turn a fraction into a decimal divide the numerator by the denominator.
Answer:
7(3 + 7)
Why:
7x3=21
7x7=49
Answer:
Step-by-step explanation:

Answer:
X=32
Explantation:
You Multiply 4 by 8 which equals to 32.