I need help i will give 19 po. ints

C

Step-by-step explanation:

Good luck and can I have brainliest

-5 7/10

How?

13 4/5

8 1/10

you need similar denominators.

13 4/5 x 2 = 13 8/10

13 8/10 + ? = 8 1/10

8 1/10 + 5 7/10 = 13 4/5

(5 7/10 turned negative bc its below sea level and your technically adding.)

MAY BE INCORRECT!

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. : )

54

step-by-step explanation:

6x9