$52.79+15% => Need to trip $7.9
$52.79+20% => Need to trip $10.5
Answer:
3 to 9
second is 2.5 to 15
Step-by-step explanation:
Answer:
See below (I hope this helps!)
Step-by-step explanation:
When dividing exponential terms of the same base, we can simply subtract the exponents, therefore:

Step-by-step explanation
b = 2h is given
2 b + h = 4 hours is given sub in the top equation
2 (2h) + h = 4
5h = 4
h = 4/5 hr or 48 minutes