Because 3+3+1= 7 which is the same number 3+4 is equal to. Another reason is any number can be broken down into smaller numbers that equal the whole.
Remove parentheses
2c - 4 + 5c + 11
Combine like terms
Answer: 7c + 7
Answer:
80/100 or 80%
Step-by-step explanation:
7/10 = 70/100
70/100 + 10/100 = 80/100
A Pentagon has 5 lines of symmetry