The following table represents the total cost, in dollars (y) to join a gym for x number of months. the cost includes a one-time joining fee of $10. does the data in the table represent a proportional relationship or a non-proportional relationship? how do you know?
x 1 2 3 4 5
y 25 40 55 70 85

Not proportional.

Step-by-step explanation:

A proportional relationship has a constant of proportional which can be formed by a ratio between any y and x values of the function. The constant will be the same every time.

The ratio y/x is 25/1, 40/2, 55/3, 70/4, and 85/5. These simplify to 25, 20, 13.33, etc. These are not the same values. This is not proportional.

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!