26x3=78
78-x=72
x=6
She needs to buy at least 6 more to have enough for 26 students
I think it's 6.80 hope it helped
Answer: B
Explanation
When rolling a dice, no matter how many times you get an outcome, it can never determine the exact outcome of the next roll, hence it is termed an independent event.
Hope this helps :)
Answer:
C(7,-8)
R= 8
The general formula of a circle = (x-a)+(y-b)=r²
