Answer:
$71
Step-by-step explanation:
9 + 70 - 8 = 71
Answer:
3/4x
Step-by-step explanation:
Answer:
792, 784, 775, 675, 645, 434, 432, 415, 342, 324.
Answer:
-157.87
Step-by-step explanation:
1) the rules are:
and

2) according to the rules above:

Answer:
the price per book is $3 the constant of proportionality is 3
Step-by-step explanation:
12 divided by 4 is 3 and 9 divided by 3 is 3 so it means that the price for 1 book is going to be 3 and for every book you buy the original value will be 3.