Answer:
$50.23
Step-by-step explanation:
f(t)=1.35(t)+9.73
First I found out how many years are after 1985 so you would do 2020-1985 which equals 30.
I plug it in for t.
f(t)=1.35(30)+9.73
Then you multiply 1.35 and 30 which would leave us with.
f(t)=40.5+9.73
Add them and you get $50.23
Answer:
0.43 x 370= 159.1
Step-by-step explanation:
B. 9 packs for $3 is best to me
Answer:

Step-by-step explanation:

First you reciprocate the fractions and change the division sign to multiplication.

Therefore the answer is:

D
7 minutes for 49 gallons
that means 1 minutes filled 7 gallon
multiply the time by 7, that is number of gallons for each time