Answer:
3
Step-by-step explanation:
2 -3 = -1 + 4 = 3
Answer:
45° 60° 64°
Step-by-step explanation:
Little triangle:180-(64+71)=45
Big triangle :180-(64+56)=60
4 x 2 tens = 80, 28 x 14 = 392
Answer:
240 minutes
Step-by-step explanation:
If it's 40 minutes for just 5 papers, we need to figure how many minutes it would take to grade just 1. So you have to divide 40 by 5 which is 8. Then 8 time 30 which is 240.