20 points
the expression 2x(3x^2 + 4) can be simplified into which of the following?
a. 5x^3 + 6x
b. 6x^2 + 8x
c. 6x^3 + 4
d. 6x^3 + 8x

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 x3+3x2−16x−48 divided by x−1?

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