5 frisbees and 3 volleyballs cost $36 the cost of 2 frisbees and 7 volleyballs is $18 which of the following systems could be used to calculate the cost of one frisbee and one volleyball​

C

Step-by-step explanation:

I believe it is C because each letter is simply standing for the variable you are missing. So basically, 5 frisbees * the cost of frisbees added to 3 volleyballs * the cost of volleyballs will create the total of $36 --> 5f + 3v = $36. This applies to the 2 and 7 as well, I hope this helps :)

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

it would be 6xy and -16xy.