Help will give points

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Thirteen bowlers were asked what their score was on their last game. the scores are shown below 190,150,154,194,181,190,170,151,170,178,161,180 find the range of the bowlers score a.56 b.44 c.34 d.23