/Answer:
the verry last one
Step-by-step explanation:
130 degrees see photo for steps
Subtract original amount from new amount:
84 - 39 = 45
He bought 45 books.
I think the answer is 10, 20, and 4
Answer: 10 times 3 equals 30 and 7 times 18 equals 126. 126 plus 30 is 156 is the answer
Step-by-step explanation:math