Barry drove a car that averages 16 miles per gallon of gasoline. After he had
a tune-up on the car,
he noticed that his car now averages 20
miles per gallon.
Write and solve a proportion that can be
used to find the % of increase in number
of miles per gallon.

d. you cannot tell because there are no values shown.

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it

1. 523.33 cubic inches

2. 113.04 cubic inches.

3. 17.41.

4. 16.49

i think this should be your answer

hope i

-lavira : )