< i need , trying to make honor roll

translate the sentence into an equation.
twice the difference of a number and 7 equals 2 .
use the variable x for the unknown number.

One integer is 5 more than another. their product is 104. find the integers

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.

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).