Simplify square root of negative 225 end root using the imaginary number i

15 i

Step-by-step explanation: Anytime a number is negative and you have to find the square root there is always going to be an i at the end of it so it would only be 15 i in this case

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12