Elby practiced volleyball for 4/5 hour yesterday and 3/5 hour today. how long should he spend practicing tomorrow to complete a 2-hour practice? what are the given facts? what is asked in the problem? what is the hidden question? what are the operations to be used? what is the number sentence? what is the answer to the problem? (there are more questions i'll post later) (fast i spend 35 points in this)

Given facts:
Elby practiced 4/5 of an hour yesterday and 3/5 of an hour today

What is asked in the problem:
how long should he practice tomorrow to complete a total of a 2 hour practice?

What is the hidden question:
how many hours total did Elby practice from yesterday and today?

Operations to be used:
addition and subtraction (and multiplication if converting from hours to minutes)

What is the number sentence:
4/5 + 3/5 = 7/5  2-7/5= .6 (not positive on this)

first you need to add the two fractions of time to get the total time spent practicing volleyball

4/5 + 3/5 = 7/5

so 7/5 of an hour has been spent (1.4 hours in decimal form)
now you subtract 1.4 from 2 to get the remaining hours needed

2 - 1.4 = 0.6

Elby should spend 0.6 of an hour practicing tomorrow
to convert this to minutes you multiply by 60

0.6 * 60 = 36 minutes

hope this helped!