Answer:
12 oz bottle
Step-by-step explanation:
See attached image.
Answer:

Step-by-step explanation:
we know that
The rate is equal to

Remember that

substitute

Answer:
f(4) =22
Step-by-step explanation:
f(x)=3x+10
Let x=4
f(4)=3*4+10
Multiply
f(4) =12+10
Add
f(4) =22
He saved $1.75 per book.
($57.75/7) - ($45.50/7)
$8.25 - $6.50 = $1.75