The bill for a pizza was $14.50. Charles paid for 4/5 of the bill. How much did he pay?

Don't know how to find x given these segment lengths

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.

Find the value of x. give reasons to justify your solutions! h ∈ ig