Work shown above! Box a is 240 lbs Box b is 120 and Box c is 150 lbs hope this helps c:
Hi there!

f(x) = -2x - 3
Plug in 0 for "x" to solve for f(0):
f(0) = -2(0) - 3
f(0) = -3
Since the question is asking you to evaluate f(0) - 7, simply subtract:
-3 - 7 = -10.
i think it is
a 40 percent chance
or either 4/10 chance hopefully i helped and if i did plz mark as the brainliest