What is the relationship of the edge length of the cube to its volume? plz hurry! need fast

Empty box + box + empty box fill in the box is equal to 30 how

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.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)