I need help with this question please

Simplify.

18 2+6(4+1) -2

What is the solution of the systems of equations? y=2/3x+3 x=-2

The function models the number of accidents per 50 million miles driven as a function

Which statement is true about the local minimum of the graphed function? over the interval[-4,-2], the local minimum is 0. over the interval [-2,-1] , the local minimum is 25. over the interval [-1,4], the local minimum is 0. over the interval [4,7], the local minimum is -7