Answer:
$30
Step-by-step explanation:
To find out how much Billy will pay, just multiply 12 and 2.50
12 x 2.50 = $30
(a) 28%
(b) 24%
When calculating the total amount of people it come out to 150.
According to the table 42 people smoke. 42/150 is 28%
According to the table 36 people exercise regularly. 36/150 is 24%
$0.70 per candy.
$78 divided by 112 gives $0.696, so by rounding off, you get 0.70
The number you are looking for is 1
