For each value of x, determine whether it is a solution to 21 = 3x + 9. Is it a solution?

Yes

No

-8.

The legs of a right triangle are 5 and 7 cm long, respectively. What is the length of the hypotenuse? If necessary, round your answer to two decimal places. A. 12 cm B. 9 cm C. 4.90 cm D. 8.60 cm

It is possible to trisect a line segment using a straight edge and compass

What pattern do you see when multiplying two powers with the same base

What is the scale factor of a model car if the scale is 1 inch = 2 feet?

How do I create a model to prove answer what is 15% of 60? I know the answer is 9 but very confused on how to show model.

If n=1 and m=3 then n^2=2 and m=6 what is wrong with this question

Find the slope and the y-intercept of the line Y=-3x+8

Solve the equation - 4 + 4a = 12 for a. A. 4 B. 5 C. 6 D. 9

Find the value of C: 6x + Cy = 18 3x + 2y = 8

Complete the steps to solve the equation 6x+1.6=58. Apply the Subtraction Property of Equality. 6x=