Can someone plz help!

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm