Which equation models the data ?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

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.