For the equation 3 (7 + x) = 3x + k, which value of k will create an equation with no solutions

A. x

B. 3x

C. 15

D. 21

What is the area of a square with sides 12 in. long? 1ft long?

How to write - 3 + (-4) as a subtraction problem?

How do I find radius and center of x^2+y^2-4x=0

Jerome uses the formula I = prt to find I, the interest earned, when he saves p, the principal of $456, for t years at a rate, r, of 3%. What is the value of I when t = 2?

Six less than twice a number is equal to 90

Steven started with 48 pieces of candy. He ate 3 per day. y= How many pieces will be left after 7 days?

True or False. The function has a vertical asymptote at every x-value where its numerator is zero, and you can make a table for each vertical asymptote to find out what happens to the function there.

What is 36/4 as a mixed number

Bob has 2 apples he gives 1 to Sam. In return Sam gave him 5 apples. How many apples does bob have left?

The product is 80. One factor is 4. What is the unknown number