15 people received an email and sent it to 3 different friends each, who in turn sent it to 2 new people. What percent of the total number of people who received the email are in the original 15 people?

Find the greatest common factor of 30a4 and 35a5

What is the relationship between the diameter and the radius of a cylinder?

What is the value of the product 2/3*9/5

Which sceneries have a negative correlation

The scores danna earned on her last five math tests are shown 87, 81, 90, 33, 84 which measure of central tendency is best to describe how danna generally performed on her tests?. a mean b median c mode d range

How would you write 1 17/20 as a percent

Eric has 5 blue shirts and 9 red shirts. What is the ratio of red to total? and blue to total? and ratio of red to blue?

Solve for R in the equation S = mpr.

A triangle is 180 degrees. One angle is x degrees and the second angle is 77 degrees. What is the expression that shows the measure of the third angle in degrees?

5.6*10⁴ in standard notation