A lighthouse’s light is visible for 15 miles in one direction. What is the total distance it covers as it makes one full circular rotation? Round to the nearest whole number.

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

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

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.