Prove that the sum of four consecutive whole numbers is always even.

In your working, let your first number be n.

Can you think of a different strategy to determine the ratio of 90 lbs on earth : 15 lbs on the moon

Another engineer is tiling a new building. A square tile is cut along one of its diagonals to form two triangles with two congruent angles. What are the measurements of the interior angles of the triangles? Explain how you calculated them.

There are 5 red, 6 blue, and 7 green balls in a box. If 3 balls is randomly selected without replacement, what is the probability that each of the balls will be of different colors?

Write 7.085 * 10-14 as an ordinary number

1. Kevin loaned Paul $50 at 10% simple interest per week. How much would Kevin pay back to Paul if he paid the loan back in: a) 4 weeks b) 10 weeks c) How long until Paul owes $120?

What are the domain and range of f (x) = - 13

What is the reciprocal of 10 1/2?

what does n equal -4 (n-6) = 12

1 5/8 • 4 2/3 equals what as a fraction

The Federal Pure Food and Drug Act of 1906 defined an adulterated drug as a drug that A. was prepared with alcohol or similar substances. B. has false or misleading labeling. C. contains ergot, digitalis, or quinine. D.