Answer:
13 hours
Step-by-step explanation:
If she has 26 tests and it takes her Half an hour to correct each test, we know here's are two half an hour a in one hour so we can then divide 26 by 2 to get 13.
Answer:
What is the smallest number you can form with the given cards? ... Alex, Hans and Stan saved money to buy a tent for a camping trip. Stan ... Alex saved 40 % of what was left of the price.
First, divide by a to get c + b = d/a. Next, subtract the b to get c = d/a - b.
Optional:
c = d/a - ba/a = (d-ba)/a