An aquarium is being filled with water .The graph shows the height of the water over time as the aquarium is being filled.

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

The difference between tax advoidance and tax evasion

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)