A ball is launched into air with an initial velocity of 50 ft/s from an initial height of 5 feet. what are the independent and dependent variables??

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

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?