You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[Q]: Marcus has 210 baseball cards . He has 58 more than Carter . How many baseball cards does Carter have ?
[A]: 152


[Q]: 0.5 the students in the band are in the trumpet section . 0.125 the students in the band are in the trombone section . What fraction of the students in the band are in either the trumpet section or the trombone section ?
[A]: 0.625


[Q]: Gavin has 23 shirts . 6 are blue the rest are green . How many green shirts does Gavin have ?
[A]:
17