Please help me with this homework show me how you get it and the answer

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

What is the sum of these mixed numbers 4 2/3+ 3 1/9