A car travels 30 miles in 1/2 hour. What is the average speed at which the car is traveling in miles per hour?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee, f, for a single job is a function of the number, t, of hours it takes him to complete the job. write the function's formula.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)