Your total cost for lunch is $18.50 for food and $1.48 for tax. A. Find the percent of sales tax on the food total. B. Find the amount of an 18% tip on the food total.

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! ❤

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Can you me find the slope! (30 points)