Answer:
a represents the Number of Minutes Late, (a=15 in this case)
Step-by-step explanation:
If the daycare charges a base fee of $3 plus $0.50 per minute late for late pickups(after closing time).
Albin on arrival for pickup had to pay $10.50;
She uses the equation
10.50=0.50a+3
0.50a=10.50-3
0.50a=7.50
a=7.50/0.5
a= 15
It means Albin was 15 minutes late to a pickup.
Answer: 15 minutes late
Step-by-step explanation:multiply as a fraction then divide by the answer