In each table, determine if y is proportional to x. explain why or why not.
first answer receives brainliest.

yes

Step-by-step explanation:

You’re multiplying every x value by 4 to get the y values

(Someone got mad at me for not including a better explanation so here you go:

x = 3    y = 12 3(k) = 12 (divide both sides by three)

k = 4

x = 5   y = 29 5(k) = 20 (divide both sides by five)

k = 4

So on and so forth for the rest of the table

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510