Triangle XYZ find angle z XZ is 23 YZ is 25 XY is 28

Find an equation for the linear function which has slope -10 and x-intercept -7

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤