Mickey charges $15,$30,$45 and 60 for babysitting 1,2,3 and 4 hours respectively. is the relationship between the number of hours and the amount changed proportional if so find the unit rate. if not, explain why

Yes

15 dollars/ hour

Step-by-step explanation:

Yes the numbers are proportional.

Basically the formula is

y = 15*x where x stands for the number of hours babysat.

So as x goes up so does the total and it goes up by the same amount.

The unit rate is 15 dollars / hour.  

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.