Write your answer in scientific notation.
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507.3

Step-by-step explanation:

(7.3x10)+(5x10)

evaluate the power

remove the parentheses

(7.3x1)+5x10 to the second power

multiply 7.3+5x100

7.3+500

calculate

there you go.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

pretty sure 750 each month!

step-by-step explanation: