How to simplify the expression. 60m-15(4-8m)+20

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Do you mind if you guys me with this question i’m on number 8

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.