Lauren made $45 babysitting. she put 1/3 in her savings and spent 3/5 of the remainder. how much money did she spend? (or you can answer) colleen had $1,600. she spent 3/8 of it on skis and 1/4 of the remainder on ski gear. how much money did she spend altogether on the skis and the gear?
( show steps for either one you choose)

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Which is f(5) for the function –2x2 + 2x - 3?