15 the power p (measures in horsepower, hp) needed to propel a boat is directly proportional to the cube of the speed s. a 73-hp engine is needed to propel a certain boat at 10 knots. find the power needed to drive the boat at 19 knots. (round your answer to the nearest whole number.)

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Factor the expression using gcf 9b+45

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?