The mapping diagram shows a functional relationship.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 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 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

If you answer 2+2 you will get over 80 points

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way