Which pair of expressions are equivalent?

A. 2y - 4 and 2y - 4 + 9

B. 14x - 7 and 7x - 14

C. 9y + 3 + 2 and 3 (y + 1) + 2

D. x + y and x - y + 2y

E. x + 2y and x - y

Is it true that energy never moves

Find all solutions of the equation in the interval [0,2pi) 8sec^2x+4tan^2x-12=0

In our Solar system six of the eight planets have moons what percentage of the planets have moons

Paco buys a carton of eggs. the carton has 2 rows of eggs. there are 6 eggs in each carton. how many eggs are in the carton

How many equations are needed to solve for 1 unknown variable?

A rope is 8.7 meters long is cut into 5 equal pieces. how long is each piece

The tanker continues to leak 720 gal/h after the first 8 hours. If the tanker originally contained 25,000 gal of oil, approximately how many more hours will elapse in the worst case before all of the oil has leaked? In the best case?

When Θ = 5 pi over 6, what are the reference angle and the sign values for sine, cosine, and tangent?

If starting population of 5 rabbits grows at 200% each year how many will be there in 50

The dinner bill came to $64.99. What will the final cost be with 6% sales tax and a 20% tip