Apump moves 42 gal in 7 min find the unit rate

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.

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)