When a sound wave uncounters a barrier, what happens?

A. the sound reflects

B. the sound is amplified

C. the sound is muffled

D. the sound dissipates

The tickets for a school play cost $8 for adults and $5 for students. The organizers of the school must make at least $3000 to cover the cost of the set construction, costumes, and programs. A.

Solve using substitution. -7x + 9y = 20 y = 10

Hat is the greatest common factor of 20 and 36? 2 4 5 6

What is the value of x in the equation 2x + 9 = 21? 2 6 9 15

Share 150 pounds in the ratio 4:1

2x-1=0 is a quadratic equation

Mia is seven yrs older than nick, who is 2 years older than leah. together their ages add to 23. how old is nick?

US National forest cover approximately 300,000 square miles. conversationalist want the total square footage of forests to be 300,000 (2nd power) square miles away. When I Vanna used her phone to do the calculation, her screen showed 9e+10.

How to tell the ordered pair represent an exponential function

TIf f (x) = x2 and g (x) = x + 6, find g (f (0)). A. - 6 B. 6 C. 12 D. 36