Well there is 13 possibilities so it would be 10/13
Answer:
7 buses. 52÷ 8 = 6.5 so rounding up to 7
Answer:


can be a perfect square if the factor
is a paired.
Hence,
,will be a perfect square.

Hence,the square root is 

Answer:
About 333000 times
Step-by-step explanation:
Answer:the length of the shorter string= 36cm
Step-by-step explanation:
Let us assume the lengths are 2x and 7x since thery are in the ratio of 2 :7
Such that Length of the shorter string = 2x
and the longer string = 7x so that the difference in Length which is 90cm can be expressed as
7x- 2x= 90
5x= 90
x 90/5
x= 18
shorter string = 2 x = 2x 18= 36cm
Longer strring = 7x 18=126cm