Answer:
See explanation
Step-by-step explanation:
The constant of variation is found using the slope formula:

The given relation is
X : -2 , -3, -4, -5
Y : -5, -7.5,-10,-12.5
We can use any two ordered pair to find the constant of variation.
Using (-2,-5) and (-3,-7.5), we have

The constant of variation is 2.5
We need to repeat this for all the options to identify the one with -2.5 as slope.
unfortunately, you did not provide the remaining options.
12 x 6s - 8 x 4s = 72s - 32s = 40s
Answer:
0.0384615385
Step-by-step explanation:
look at picture
Answer:
B
Step-by-step explanation: