Subtracting a negative number is like removing debt. When you remove debt, you effectively gave someone money and the value of their bank account increased.
Another answer is that “subtraction is addition of the opposite,” so subtracting a negative number is really adding a positive number, which again causes the other number to increase.
Answer:
27 students
Step-by-step explanation:

cross multiply and you get 27
Answer:
c or d i think
Step-by-step explanation:
Answer:
Step-by-step explanation:
The submarine is underwater for 6 seconds. The submarine hits the water after 1 second and comes back up at the 7th second.
9 is the answer because 1/3 = 3