Answer:
22⁰
Step-by-step explanation:
By angle sum property :
x + 127 + 31 = 180⁰
x = 180 - 158
x = 22⁰
he increase from 125cm to 135cm
first step :

second step :
percents he change is

Answer:
15.5925925926
Step-by-step explanation:
F(4)=4(4)+5
Which equals
F(4)=21