How many 4.2 pound bags of mulch do we need to cover 60 square yards if each bag can cover 1.25 square yards?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

It says factor each expression 49x-28?

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