Answer:
$162
Step-by-step explanation:
5r=20 10p=100 14t=42
100+42+20=162
5r+10p+14t=$162
I think it's 112 I did it in my head might be wrong
Answer:

3^2 * 3^5 = 3^7
Step-by-step explanation:
I assume you mean this:

If so, then the rule is that when you multiply two numbers with the same base, you give the same base and add the exponents.
