Which is the solution to s - 89-77
a. 18.6667
b. 15.4851
с.
d.
30.9702
-3.9459
Please select the best answer from the choices provided

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.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x