Will's Watersports made a total of $780 from renting 12 jet skis and 9 kayaks. Family Fun Rentals made a total of $570 from renting 7 jet skis and 11 kayaks. What is the cost of each type of rental?

I think its

Jet Skis:$42

Kayaks:$70

Step-by-step explanation:

$780 = 12 jet skis and 9 kayaks

$570 = 7 jet skis and 11 kayaks

12x+9y+780=570+7x+11y

x=0

11-9=780-570

3=210

210/-3=70

y=0

12-7=780-570

5=210

210/5 = $42

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation: