Answer:
13
Step-by-step explanation:
8+2=10
10+3=13
Answer:
A = 1/2 * (a + c) * h
A = 1/2 * (6 + (2 + 6 + 2)) * 6 = 48
Think of it this way: your friend is thinking of a year, and you have to guess which. She has told you the year is in the 20th century (1900s).
There are 100 years in the 20th century (1901-1999 plus 1900).
There can be 100 possibilities
12/99 is the fraction form