20*2+1+3/9=7
need to add grouping symbols to make it true

(20*(2+1)+3)/9 = 7

Step-by-step explanation:

You can tell that the only way that it can be true is using the division.

63/9 = 7

So I tried to find a way for everything before the grouping symbol to be 63:

(20*(2+1)+3)/9 = 7

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. : )

i am unable to solve this problem

step-by-step explanation: