Answer:
Each pencil costs 20 cents
Step-by-step explanation:
2.40 - 1 = 1.40
1.40/7 = 0.2
6 + 8x = 30
Problem written out
8x = 24
Subtracted 6 to get 8x alone
x = 3
Divided 8 to get your answer!
12,089 is less than 12,098
The first choice is the correct one.

It is true only whenever x tends to 0(zero)
it is not importent that x be in radian or in degree.