B.38 because if 5 of the 18 are nickels which equal 5 you have 13 coins left and you have 25 cents. Now the rest are pennies that equal one cent so you just add 13 to 25 and you get 38 cents
One way you could solve this is to just multiply the top and bottom out so that you get 9/81, reducing it by 9/9 to get 1/9 or option C.
Another way would be to do

since dividing numbers with exponents would be subtracting the bottom exponent from the top exponent, provided that the base number (in this case 3) is the same for both. For this method, you would get

, which is equal to 1/9 or .1 repeating, the same answer that you'd get with the first method.
Answer: 6.
Step-by-step explanation:
4^2 = 16
10 − 16 + 6 * 2
6 * 2 = 12
10 − 16 + 12
10 - 16 = -6
-6 + 12 = 6
$56.65
55(.03)= 1.65
1.65+55= 56.65