The sum of seven and the quotient of a number x and eight

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

For which pair of functions is (gof)(a)=|a|-2?

Jahdzia wears her winter coat when the temperature is colder than -4 degrees celsius. write an inequality that is true only for temperatures (t) at which jahdzia wears her winter coat.