Answer:
1. 81
2. 4 (square root of) 25^3
3. 30 (square root of) 10

and also

now, we know that V varies directly to T and inversely to P simultaneously
thus

so
Answer: $4.50
Step-by-step explanation:
If she spent 10.50, and had 7.50 left, her total was 18.
$18/4=$4.50
Answer:
The answer is D
Step-by-step explanation:
I did it on edg