Answer:
32 bags with zips but no buttons
+39
= 71 bags have zips on them
First, let's figure out how long it takes him to eat one of his mother's pies. We do this by finding the number we multiply 1 1/2 to get 1, then we 45 minutes by the same number. We multiply 1 1/2 by 2/3 to get 1, so let's multiply 45 my 2/3rd. This is equal to 30 minutes. So, Paulo can eat one of his mother's pies in 30 minutes. From this information, it is clear that he can eat half a pie in 15 minutes.
The answer is -1. You multiply the 1/4 with the 5x and equal it to 3 multiplied by 5 and have gotten 15x, then multiply the 3 with the 2, as apart of the parentheses. Lasty you just leave the -9 on the side and solve the equation.
B, just because the diagonals are perpendicular doesn't mean they are equal in length, you can get a Kite with perpendicular diagonals
