An equilateral triangle has a perimeter of 90 inches. Find the area of the equilateral triangle in simplest radical form.

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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.

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.