Answer:
764
Step-by-step explanation:
well, it is
First one is 40
Second one is 50
Third one is 80
The actual answers
First one is 38
Second is 52
Third is 78
Since it is 100 minutes of stretching and scrimmaging, we can subtract the 10 minutes we know is stretching. 90 minutes is equal to 2/3 of the practice then. Divide by 2 and multiply by 3 to get the entire time of the practice or 135 minutes. However, you asked for it in hours, so we can subtract 120 minutes because this is 2 hours. 15 minutes is 1/4 of an hour. So practice took 2&1/4 hours. Hope that helps.
Your answer is D. (2x2 - 5)(-2x2 + 5)
