The price of a gallon of gas increased last month from $3.20 a gallon to $3.68 a gallon. what was the percent increase?

Can anyone me with 32,33,36,37,and 40.

Solve -.016x= -16. need solving this

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.