Christopher divided 678 by a mystery number. in his quotient, 7 shifted 3 places to the left. express the mystery number in exponential form.

The radius of a circle is 6 miles. what is the length of a 135° arc? 135° r=6 mi

A sphere with a mass of 12 g has a radius measuring 2 cm. What is it's density?

give an example of a time when finding the percentage of a number would be useful. Explain.

Sarah has $20 saved. If she will save her allowance for the next 3 weeks, and she gets $10 per week for her allowance. At the end of the week, she gets $150 in birthday money.

What is the slope of a line perpendicular to x - 5y = - 10? What is the slope of a line parallel to 4x + y = - 1? What is the slope of a line perpendicular to x - 3y = 9? What is the slope of a line parallel to 10x - 5y = 8?

If h (x) = f (x+k) what is the value of k?

What is 3/4 * 2 1/2 * 4/5

The solution to 2x - 2+5 = 13 os

What is 165/266 simplified?

If the area of the parallelogram is represented by 4x2 - 2x + 5 and the base is 2x - 6, which represents the height?