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a 140 pund person in line skating burn 6 calories per minute. If the person skates for 50 minutes how many calories does the person burn?

a 140 pound person playing tennis burns 5 calories per minute. if the person plays for 30 minutes, how many calories does the person burn?

(1,1) (1,-5) (-3,3). What do the three points have in common? Are all three points the same distance from the center? What does that different represent with respect to the circle?

The sum of the angles in a triangle is 180 degrees. The middle size angle is 12 less than three times the smallest angle. The largest angle is twice the sum of the smaller two angles. Define your...

Rye high school is hosting a play. Joshua purchased 3 adult tickets and 2 student tickets that cost \$60.60. Alyssa purchased 1 adult ticket and 3 student tickets that cost \$37.70. How much does each...

Karl bought x bags of red marbles for y dollars per bag, and z bags of blue marbles for 3y dollars per bag.  If he bought twice as many bags of blue marbles as red marbles, then in terms of y,...

While Michelle say observing birds at a bird feeder, one fourth of the birds flew away when they were startled by a noise. Two birds left the feeder to go to another stationed a few feet away. Three...