Suppose a-b=0 which one of these expressions equals a+b ? choose one answer b.)2a c.)0 e.)a/b

 The correct option is (b) 2a.

Step-by-step explanation:  We are given the following condition :

We are to select the correct expression that equals (a + b).

From equation (i), we have

Therefore, we get

Thus, a + b = 2a.

Option (b) is CORRECT.

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. : )

-8

step-by-step explanation: