Use the Distributive Property to simplify each expression. a. 9(x + 4)

b. −2(4x − 7)

HEL!!

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14