39.71 subtract the first number from the second number
The answer is 6.5 - you add 6 and 7 together and then you divide them by two
If you download the app sotocratic it will help
Ok so 1.5 is pins and 6.5 is t shirts so you multiply 1.5 x 20 and 6.5 x 5 so for pins= $30 and T-shirts= $32.50 and you times both those numbers by 3 so for pins you get $90 and T-shirts you get $97.50. Finally you add them and get $187.5 so the answer is $187.5 for the project.
the 5th hour there would be 4 puppies available for adoption
The 6th hour would have 2 puppies available for adoption
these answers are only correct if the ratio stays the same