Since 30% is the same as 0.30, multiply 0.30 by 720 to get 216. Answer is $216. Another way would be knowing that 30% is the same as the two of 30/100 or 3/10. This by multiplying 720 by 3 to get 2160 and then dividing by 10, you'd get the same answer. $216.
Y = -3x - 2
5x + 2y = 15
-5x -5x
2y = -5x +15
__________
2
y = -5/2 x + 15
y = -3x - 2
Answer:
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Step-by-step explanation: