In a particular classroom, a student who did not study scored 60 points on a test. if that student scored 90 points when studying for three hours, what is the rate of change of his score per hour studied?

Interpret the following expression (5y^2-7)^3/(2y)^2

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?

The graph represents f(x)=[x]+3. what is f(-2.2)?