Answer:
$1080 or 13
Step-by-step explanation:
If you are finding the percentage : 90% ÷ 1200 = 1080
If you wanna know how much for each: 13
Answer:

Step-by-step explanation:
Since the $35 is a one-time fee, 0.50 is the rate, t is the variable, and 51 is the total bill, we can form the equation:
