Evaluate the expression for the given values.

mx−y when m=1, x=5, and y=2

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i think the answer is 13 or

Write an algebraic expression for the word expression the quotient of c and 8

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?