F(a) = -2a^2 - 5a^4
if a=-3
f(-3) = -2(-3)^2 - 5(-3)^4
= (-2*9) - (5*81)
= -18 - 405
= 423
$30
You can get this by setting up the equation below.
75 =
Then you would cross multiply to see what the base cost is. Then you could divide that number by the new number, 5000, to get the new cost.
Answer:
The answer is B
Step-by-step explanation:
Lol I just had this same question on edge 2021 (◕‿◕✿)
Answer:
These speed limits and price rates are known as unit rates because they give us the rate per unit -- in the speed limits, the unit is hours -- in the prices, the unit is pounds. ... The speed limit of 55 miles per hour is the same as the ratio 55 miles to 1 hour.