A set of 7 numbers has a mean of 12. What additional number must be included in this set to create a new set with a mean that is 3 more than the mean of the original set?

Jess deposited $5,000 into an account that earns simple interest. After 9 years, Jess had earned $3,150 in interest. What was the interest rate of the account?

Kim says the amount of flour in the recipe can be expressed as a fraction. IS she correct?

Simplify the following expression 121 divided 11 + 3 x 4/2

Which expression is equivalent to 0. 5 * 0. 6 0. 5 * 0. 6? A. (5x10) x (6x10) B. (5x1/10) x (6x1/100) C. (5x1/100) x (6x1/100) D. (5x1/10) x (6x1/10)

A golfer hits a golf ball with a club. The mass of the ball is 0.05 kg. The ball accelerates at 2,000 m/s2 What is the net force, to the nearest newton, that accelerates the ball?

the expressions 4b-6 and 2b+4 represent the lengths of the diagonals of parallelogram wxyz for what value of b is wxyz a rectangle

2x+y=12 and 2x+6y=-8

A stretch of highway that is 12 1 4 12 4 1 12, start fraction, 1, divided by, 4, end fraction kilometers long has speed limit signs every 7 8 8 7 start fraction, 7, divided by, 8, end fraction of a kilometer.

What percentage of 250 is 25?

Write four irrational number between 0.1 and 0.2