Im watching Barney and friends spitting hot bars

Barney is a dinosaur from our imagination

And when he's tall

He's what we call a dinosaur sensation

Barney's friends are big and small

They come from lots of places

After school they meet to play

And sing with happy faces

Barney shows us lots of things

Like how to play pretend

ABC's, and 123's

And how to be a friend

Barney comes to play with us

Whenever we may need him

Barney can be your friend too

If you just make-believe him!

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743