Answer:
90
First, divide: 75/25=3
Last 3x 30= 90
or
30
x 3
--------
5x+x=42
6x=42
x=7
Step-by-step explanation:
1. C
2. D
3. A
4. A
5. C
6. A
7. Do yourself
square root of 167281 is 409
Here's the Step-by-step explanation using division: