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Step 1) 2x-5y+x+y=2x+x-5y+y
step 2) 2x+x-5y+y=3x-4y
by putting together like terms you get the answer 3x-4y so your answer should be A
Answer:
Calculate Principal, Interest Rate, Time or Interest. ... You received $72 in interest after 3 years. ... where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. In this example I = $72, i = 4% and t = 3 years, so ...
Step-by-step explanation:
800$ because yearly he would deposit 8000$ and 10% of that would be 800$ :)