Combine like terms

9 + 12t - 6t

A.) 9-12t

B.) 21

C.) 21t

D.) 9+6t

Plane travels 1000 miles in 5 hours and 30 minutes. What is the average speed of the plane in 1 hour?

Which polyhedron has more faces than an octahedron but fewer faces than an icosahedron? A. Dodecahedron B. Cube C. Tetrahedron D. Hexahedron

The taller cylinder will have more volume if it is the

What is the answer of 3· (2x+5) - 23=10?

When Eric makes a small batch of salsa, he uses 1 cup of chopped onions and 3 cups of chopped tomatoes. He wants to know how much of each ingredient to use in larger batches.

If Julie needs 3 and 1/4 cups of oatmeal how many 1/4 cups of oatmeal will she use

Write an algebraic Expression for three more cookies than are in the jar

Is x=-7 an equation that describes a function

Arnold's entire workout consisted of 10 minutes of warm up exercises 25 minutes of lifting weights and 15 minutes on the treadmill what was the ratio of the number of minutes he lifted weights to the total number of minutes of his entire workout

Lines a and b are perpendicular. The equation of line a is = 13+3 y = 1 3 x + 3. What is the equation of line b?