Express the rule multiply by 12 then add 18 as the function

Jonah runs 3/5 miles on sunday and 7/10 mile on monday. he uses the model to find that he can ran a total of 1 mile . what mistake does jonah make

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)