Bella saw that 7 out of 11 people brought an umbrella to the beach. there were 99 people there. how many of them did not have an umbrella?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

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.

One positive number is 9 more than twice another. if their product is 95, find the numbers