Amechanic buys $14.56 worth of parts from a supplier. if he pays for the parts with a $20 bill, how much change will he receive?
a. $6.56
b. $6.44
c. $5.44
d. $5.56

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !

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step-by-step explanation:

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