Replace the x with 2: f(2)=2*2+7=4+7=11
replace the x with 7: f(7)=2*7+7=14+7=21
I do not see any illustrations, but repeated subtraction is the exact same as division.
I hope this answer was useful, and as always, I am joyous to assist anyone at any time.
answer = 2
You can just use a calculator unless you need to show your work
Answer:
The first submarine needs to travel at a rate of [-180 – (-1,320)] ÷ 60 = 19 feet per minute.
The second submarine needs to travel at a rate of [-180 – (-1,440)] ÷ 60 = 21 feet per minute.
21 – 19 = 2, so the second submarine must travel 2 feet per minute faster than the first sub.