The perimeter of a rectangular field that measures 2 feet by 18 inches is ft.

7 ft

Step-by-step explanation:

As we know that the formula to find the perimeter of a rectangle is

P = 2 (l) + 2(w). With that being said, we can look at the question.

The answer should be given in terms of feet, so we will have to convert 18 inches to ft. In order to convert from inches to ft, you will have to divide by 12.

18 / 12 = 1.5ft

18 inches = 1.5 foot

Now we take the given values and put them into the formula to find the perimeter of the rectangular field.

2 (l) + 2(w) = 2 (2 ) + 2 (1.5) = 7ft

The perimeter of the rectangular field is 7ft.

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!