a function tells how to compute the output r when the input c is given which is the dependent variable

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint