Francine burns 215 calories for every hour she works out. Which equation represents the relationship between x, the number of hours Francine works out, and y, the number of calories she
burns?

y * x

or

215 * x

y times x because y(number of calories) times x(number of hours) is the total abount of calories burned during the workout. you could substitute 215 for y because we know that y is 215.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8