Acollection of quarters and dimes is worth $12.40. there are 67 coins in all.

how many of each coin are there?

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?