I think its the last one, Aidan can expect to save about $27.52 each week. Hope I was correct
Answer:
The answer is "19.89".
Step-by-step explanation:
Given:

Solution:






that's why the answer is correct.
Answer:
1. 73
2.-63
Step-by-step explanation:
1. 30+43=73
2. -84+21= 21-84=-63
A negative exponent is the opposite of a regular exponent so for example, 5 to the power of -3 is 1/125