07.04 Similar triangle

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Use sigma notation to represent the following series for 9 terms.