It isn't a real test. I do believe it helps you with your grade and the classes you'll take next year.
Step-by-step explanation:
jdsjksksabbsksisisnsbsjjw
You could do this in two ways, you could either subtract immediately or convert the time given in hours into minutes
STEP 1:
8:10
- 7:40
which will give 0:30
STEP 2:
8 hours 10 minutes into minutes is
(8 * 60) +10 = 490 minutes
7 hours 40 minutes into minutes is
(7*40) + 40 = 460 minutes
490 - 460
= 30minutes
70, Multiply 5 pieces by 12 friends and you get 60, then add the 10 pieces he originally took out, and you get 70
Answer: 
Step-by-step explanation:
Corresponding sides of similar triangles are proportional, so:
