Answer:3x^2+8x-16
Step-by-step explanation:
Ok so in order to find the answer to this problem we are going to Multiply

and

.
1487.93 should be the correct answer I believe.
If A=750+135N; and B=485N, then A+B=
750+135N+485N=750+620N
T=620N+750
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672 dollars is the net price because 15 percent off of 10 percent of 662 dollars is about 10 dollars and 10 + 662 is 672