What is the constant of proportionality between y and x in the graph

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

If 25% of y is 30, what is 60% of y?