Method 1 :
(152+138+160)÷3 = 150
(152+138+160+198)÷4 = 162
Then his average score will increase
Method 2 :
Since 198 > 150 then the average will increase automatically.
Answer: Your answer would be 6
Step-by-step explanation:
Answer:
2 units is perpendicular bisector of line segment
he increase from 125cm to 135cm
first step :

second step :
percents he change is
