How do you use substitution to solve

y=12

2x-y=4

What is 5√28 + √63 in simplest radical form?

Ms. Bloom brought 4 packs of treats for Halloween. She gave away 2 1/9 packs of treats to her class and gave away 5/9 packs of treats to the two classes of kindergarten students that causes to her class for trick or treating.

What is the circumference of circle with a diameter of 9 inches

Angles a = 3x + 5 b = 5x - 18. C = 7x - 2

An artist is creating a large conical sculpture for a park. The cone has a height of 16 m of and a diameter of 25 m. Find the volume the sculpture to the nearest hundredth. A. 833.33 m3 B. 7,850 m3 C. 2,616.67 m3 D. 209.33 m3

Stella has a cylindrical pool. She needs 20 cubic meters of water to fill the pool to the top. The pool has a diameter of 3 m. Using π ≈ 3.14, which is the approximate height of the pool?

Juan bought a laptop for 650 and a power adapter for 59 if the sales tax rate is 6% what was the total tax that juan paid

Complete the square y=x^2+6x+8

Which do you think will have a greater value, 1/8 of one pound gold or 1/4 of lead? Why?

Construct the described data set. the entries in the data set cannot all be the same. the median and the mode are the same. what is the definition of median?