Respuesta :

we know that

-7 1/8 on Monday

-1 7/8 on Tuesday

+13 on Wednesday

so

Adds the given numbers

but first

Convert the mixed numbers to an improper fractions

7 1/8=7+1/8=57/8

1 7/8=1+7/8=15/8

so

-(57/8)-(15/8)+13

-(72/8)+13

-9+13

+4

therefore

The answer is a gain of 4 points