You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.

Input: Consider Input: 0.5 the students in the band are in the trumpet section. 0.3 thestudents in the band are in the trombone section. What fraction ofthe students in the band are in either the trumpet section or thetrombone section?

Output: 0.8

Input: Consider Input: A tailor cut 0.75 inch off a skirt and 0.25 inch off a pair of pants. Howmuch more did the tailor cut off the skirt than the pants?

Output: 0.5

Input: Consider Input: There were 9 red orchids and 3 white orchids in the vase. Sally cutsome red orchids from her flower garden. There are now 15 redorchids in the vase. How many red orchids did she cut?
Output: 6.0