Sara packed 7 boxes of books. each box had 13 mystery books and 15 science fiction books. how many more science fiction books than mystery books did sara pack?

There are 14 more science fiction books than mystery books

Step-by-step explanation:

Multiply 13 x 7 = 91

Multiply 15 x 7 = 105

Subtract 105 - 91 = 14

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

instagram is better than go there instead lol

step-by-step explanation: