Answer:
14
Step-by-step explanation:
Jack drove 278.2 miles on 19.6 gallons of gasoline. then
278.2 miles - 19.6 gallons
x miles - 1 gallon
Write a proportion:

Cross multiply:

Answer:
(x,y)--> (x+4,y-4)
Step-by-step explanation:
Yes depending on her purchase. If it is over 90.00 dollars then no she will not.
Answer:
10 sorry if i'm wrong
Step-by-step explanation:
Answer:
Complementary
Step-by-step explanation: