Three months ago santos could walk 2 miles in 40 minutes today he can
walk 2 miles in 25 minutes what is the percent of change

What are the exclude value of mn+3m

You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.

If f(x)=x^2- 4 and g(x)=x^2 plus 2 x, (c) (f-/3) = ? (simplify your answer.)