Eric conducted an experiment in his science class and recorded the data below. What is the constant of proportionality that relates the distance traveled, y, to the elapsed time in seconds, x, represented by this data?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.