The Earth revolves around the sun once per year, in a stable orbit. What is it that keeps the Earth in this orbit? A) Gravity B) The moon C) Sunlight D) Rotation

Sometimes the unit price on two sizes of the same product will be the same. When this is the case, how will different kinds of discounts affect the total unit prices of each size?

2 and 1/10 divided by 1 1/5

The number of students who attend to school could be divided among 10, 12 or 16 busses, such that each bus transports an equal number of students. What is the minimum number of students that could attend to school?

What is the first step when rewriting y = - 4x2 + 2x - 7 in the form y = a (x - h) + K?

Two cards are drawn without replacement from an ordinary deck, find the probabaility that the second is a face card, given thathat the second is not a seven, given that the first is a seven. what is the conditional probability?

What is 3 (x-8) - 5=9x2+1?

What is one and a half full turns

Describe in your own words what a dilation is.

Divide 72 into 2 groups so the ratio is 3 to 5

Ella's geometry teacher asked each student to devise a problem and write out its solution. Here is Ella's work: A triangle has side lengths of 10, 11, and 15.