Answer:
if its a multiple choice its A!
Step-by-step explanation:
These customers use at least 4,970 gallons but no more than 8,970 gallons of water per month.
Imagine that the variable c represents something tangible, like an orange. So what this equation is asking is subtract 1 orange from 12 oranges. So you are left with 11 oranges.
Another way to think about this problem is if you rewrite the equation slightly to:
12c - c =
12c - 1c =
11c
Providing 1 mile is 5280 feet, then,

It will travel,

in 15 seconds.
Answer:
first deal with g(-1)
y=4a - 3
a=4y -3 and now make y the subject again
a+3/4...now put it into f(a)
2(a +3/4) simplyifying
a+3/2 as yo final ans