9х - 5 = 1/4(16х + 60) solve for x

is the answer 20 or something else?​

(write as unit rate) 12 meters in 2.8 seconds =

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how