Katie has 30 stickers. Katie have 2/3 the stickers to her sister. Of the amount left, she gave 2/5 to her friend. How many stickers does Katie have left for herself

Step-by-step explanation:

She started with 30.  Then she gave away 2/3 OF that 30.  Of means to multiply.  If we multiply 30(2/3) we get 20.  That means that she gave away 20 to her sister and she still has 10.  Then she gave away 2/5 OF that 10 to her friend.  If we multiply 10(2/5) we get 4.  So 10 - 4 means that she has 6 stickers left.

a) $2025

Step-by-step explanation:

The equation you would do is

by multiplying 45 and 1.50, you get the price of how much money she makes after one day. in order to find 30 days, just take the product of that equation and multiply it by 30 to get $2025