A sign in a gas station advertises gas at the rate of $3.39 9/10 per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal?(1 point)
A: 3.399
B: .339910
C: 3.0339
D: 0.3399
To convert the fraction 9/10 to decimal form, divide the numerator (9) by the denominator (10).
9 รท 10 = 0.9
So, the decimal form of 9/10 is 0.9.
Now, add 0.9 to the given whole number 3.
3 + 0.9 = 3.9
Therefore, the price of a gallon of gas is $3.9, written strictly as a decimal.
Answer: None of the given options (D: 0.3399)