Answer:
C
Step-by-step explanation:
It should be 25 or 20 because the way the problem is set up you should already have your answer of 2020
.85*36,000=30,600
30,600*0.09=2754
30,600-2754=$27,846
Answer:
mass - 1395.28 g
Step-by-step explanation:
density = mass / volume
65.2 g/cm^3 = mass / 21.4 cm^3
65.2 g * 21.4 = mass (cm^3 cancels out)
1395.28 g = mass
Answer:
a=0, b=16, of the pair (0,16)
Step-by-step explanation:
You want to prove the following: There are real numbers a and b such that 
So, to prove this, it is enough to find a pair (a,b) of real numbers for which the equation holds true. There are infinite of such pairs, but one example is (0,16). Indeed:

In fact, (0,m) or (n,0) ara valid pairs, for nonnegative numbers m,n. Even more is true; these are the only pairs which satisfy the equation.