(Huy) If x varies directly with (m + n), and x = 12 when m = 1 and 1=2, which is the value of x when m = 3 and n = 4?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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! ❤

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?