Visitors to a carnival pay an admission fee and must buy a ticket for each ride they go on. Last year the total cost for a visitor to go on n rides was modeled by the expression 4.00 + 1.50n. This year, the carnival doubled the cost of a ride ticket but kept the admission fee the same.

Which expression models the total cost for a visitor to go on n rides at the carnival this year?

A. 4.00 + 3.00n

B. 8.00 + 1.50n

C. 4.00 + 0.75n

D. 2.00 + 1.50n

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!

do it yourself this is easy

step-by-step explanation:

i think the answer is a.( -3, -1 )

add -60 to 120 which will result in : 2x+3y=180

then subtract 2x: 3y=-2x+180

lastly, divide by 2: y= -2/3x+60

hope this is the answer you're looking for: )