79.47 (total cost before sale) - 9.02 (12% off) = 70.45 (total after sale).
70.45 (total after sale) + 6.32 (tax) = $76.77
Hope this helps!!!
The solution to the system of equation are x = -2 and y = 3
<h3>How to find the solution of a system of equation?</h3>
x + 3y = 7
2x + 4y = 8
Let's isolate x in the first equation
x = 7 - 3y
substitute the value of x in the second equation.
Therefore,
2(7 - 3y) + 4y = 8
14 - 6y + 4y = 8
-2y = 8 - 14
-2y = -6
y = -6 / -2
y = 3
Hence,
x + 3(3) = 7
x = 7 - 9
x = -2
learn more on equation here: brainly.com/question/12926248
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Answer:
wait what was edgar's absolute guessing error
Step-by-step explanation:
greater than 18, or less than 18