Find the range of the data set 7,12,15,4,23,15,25,9

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)