Twice a number plus 4 is less then 12 The quotient of x and 3 minus 5 is greater then four

If you know these answers tell me please I have a homework and this app will save me

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Me. i can't figure out this question. give an explanation too. .