How much does the student discount come to in dollars and cents? 4 items:
Stereo-$395.95
Printer-$159.95
Phone:$750.00
BT Speaker-$129.95 ( Student discount-25%, Sales Tax- 8.25%)

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?

Percent increase and decrease. original number: 45 new number: 18

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?