Answer pls i will give brainliest​

Simplify the expression. -2/5(10+15m-20n)

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.

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air