The diameter of circle A is 9 times as great as the diameter of circle B. The area of circle A is how many times as great as the area of circle B? A) 9 B) 16 C) 81 D) 20 E) 1,543

Which variable do we solve for when using the quadratic formula

Use the eliminatio method to solve the system of equations. Choose the correct order pair: 3x+5y=48 - 3x+5y=12

3^x - 7 = 7 What is the value of " X" and how did you find it?

What is £41 deacreased by 90%?

What 4 2/5 as a improper fraction

Solve for v in terms of s, t, an u. U=tsv

Two cities are 2310 miles apart. a plane leaves one of? them, traveling towards the other at an average speed of 380 miles per hour. at the same time a plane leaves the? other, traveling towards the? first, at an average speed of 390 miles per hour.

What expression is equivalent to x+x+x+2

Todd ran 8 laps around a 400-meter track on monday, 4laps on tuesday, 8 laps on wednesday, 4 laps on thursday, and 8laps on friday. how many kilometers did he run?

Amanda found that the equation 10x+5y=20 in the "Linear Equations" chapter of her math book What is an equation that can be written with Amanda's equation to for a pair of linear equations such that the system of equations has exactly one solution?