A tunnel is 1/4 mile long. There are 6 lights in the tunnel placed equal distances apart. Which equation and solution shows the distance in miles, d, between the lights in the tunnel?

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)