3. Which of the following situations combine to make zero?
A. The temperature falls 10 degrees below zero and then rises to 10°F.
B. A friend borrows $20 and promises to return double the amount.
C. A start-up business has income equal to its expenses.

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

idk wbu

step-by-step explanation: