Drag and drop pricing approaches against the corresponding examples of the approaches.

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

The measure of the angles supplement is 30 more than four times that of its complement. find the measure of the angle described

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force