Kendra was making cookies. She mixed 2 and 1/2 cups of flour, 1 and 1/4 cups of sugar, and 1/8 cup of brown sugar together in a bowl. How many cups did she have altogether?

3 and 7/8

Step-by-step explanation:

Add 2 1/2 and 1 and 1/4 together because they are mixed fractions then add the 11/8 to get 3 7/8

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. : )