A is the right option! Because 0.40 should be in second equation with the x to represent the number of stamps multiply by 40 cents.
It would be the second one from the top.
The reasoning is that when you have exponents of exponents you just multiply them and (8^12)^3 is just saying
(8^12)•(8^12)•(8^12) which when you are multiplying come number exponents you add the exponents which equals 8^36.
Answer:
Range of F(x) = (-∞ ,72).
Step-by-step explanation:
Range of the function F(x) means the set of values which are taken by the function along its domain.
F(x) = 72 - 
Since coefficient of
is negative on the right side ,
Maximum value of F(x) will come at x = 0.
Which is, F(0) = 72.
Now, as x increases , F(x) decreases , when x will reach infinity ,
F(x) will be reaching negative of infinity .
Thus, F(x) is ranging from -∞ to 72 .
Range of F(x) = (-∞ ,72).
The formula for the slope is y=mx+b