Answer:
7) B
8) C
9) C
10) C
Step-by-step explanation:
I just did it
Here you go, should be right
471 divided by r equals 94.2
314 divided by r equals 62.8
94.2 minus 62.8 equals 31.4
√72 can be written as 3√8 , √128 as 4√8.. Here, we have to solve √72 -√8 +√128 .. i.e, 3√8 - √8 + 4√8.. which is equal to 6√8 or can be written as 12√2 //
