The answer is

In the choices; the coefficients 21, 32 and 10 are not perfect squares.
The answer would be -21.6
Answer:
Rate of change = (1350 - 750)/(2010 - 2000) = 600/10 = $60
Initial value = $750
Equation is y = 60x + 750; where y is the amount charged to customer and x is the number of years from 2000.
I believe the SSS theorem as they both share/have side measurements (and no defined angles)
Answer:
The answer is 1 5/6
Step-by-step explanation: