What are numbers such as 1,2,4,5,10 and 20 called

Find the value of x for which the lines are parallel.

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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.