31.+ addition
32. - subtraction
The tenths place, starting from the right, it gets higher going to the left. so the tenths place is only ten times greater than it.
Answer:
x=151
--------------------------
Answer: 2520
Step-by-step explanation:
Answer:
7r+63
Step-by-step explanation:
7(r+9)
7(r)+7(9)
7r+63
Hope this helps .-.
