How do u solve this algebra problem 5n=20

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation

In an equilateral triangle, each angle is represented by 5y+3. what is the value of y? a. 9.7 b. 10.8 c. 11.4 d. 7.2