0.777, 1/11, square root of 49, square root of 200
which ones are rational and irrational

-.777 is rational because it can be put into a fraction : -777 / 1000 
1/11 is rational because it is a fraction
The square root of 49 is rational because it equals 7 which is a whole number and can be put into a fraction.
The square root of 200 is irrational because it cannot be put into a fraction.

The answer is c. 7 (i think) i’m almost sure though