Two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at 75 miles per hour. the westbound train travels at 65 miles per hour. how long will it take for the two trains to be 196 miles apart?

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 .

What are the domain and range of the function f(x)=2^x+1

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7