There is a frog at the bottom of a 20 foot well. he climbs up 5 feet during the day but at night he falls asleep and slips down 4 feet. at this rate how many days will it take it to climb out of the well.

20days

Step-by-step explanation:

He climbs 5ft during the day and fell 4ft at night. Therfore the difference is 1ft and the well is 20ft..so it implies that the rate at which it ft increases a day is 1ft will be multiplied by the foot of the well which is 20ft

1×20=20days

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!