Explain why all of these expressions have the same value. 4500÷90 450÷9 45÷0.9 4.5÷0.09

Find the value of x. round the length to the nearest tenth

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.

Ithink i know it but i want to be sure so can you me out ?