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?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.