Step-by-step explanation:
long hair
15 - 12 = 3
long hair percentage
= 3 ÷ 15 × 100
= 20%
Answer:

Step-by-step explanation:
This is a multiplication problem.
We want to multiply 
We factor to get:

We now cancel out the common factors to get:

We now multiply the numerators and the denominators separately to get.
This simplifies to 
Therefore the simplified expression is 
Answer:
1. x= - 20/13
2. 7x-21
Step-by-step explanation:
Step-by-step explanation:

Answer:
true
Step-by-step explanation: