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678.24 ft³

Step-by-step explanation:

The figures are similar, hence

ratio of radii = 2 : 6 = 1 : 3 ← linear ratio

ratio of volume = 1³ : 3³ = 1 : 27

Hence

= 27 × 25.12 = 678.24 ft³

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.

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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