What we already know is that we have a 40. Eight tenths would look like the following: .8 This is because it says 8 tenths, meaning the 8 is in the tenths place, right after the decimal. So, the answer would be 40.8
Fourty and eight tenths as a decimals is 40.8. More than one pounds behind decimal is too much and a different number other than 8 is wrong. The answer is B: 40.8.
