Assume that n 70. Find the average of this set of numbers' .
{n, 2n, 3n, 4n, 5n, 6n, 7n, 8n, 9n)

Aphoto of a painting measured 13 x 17 inches the scale of the photo to the original painting is 1 inch to 3 inches. what is the size of this painting

Find the area of a parallelogram with base 15 yards and height 21 2/3

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be