If the volume for 3-D polyhedra A is 200 cm3 and the volume for 3-D polyhedral B is 800 cm3, how many times bigger is the volume of pyramid B than pyramid A?

B is 4x bigger than A

Step-by-step explanation:

-This is a question testing proportionality.

#We first get the ratio the ration of the volumes as

We then express it in the equation form of constant of proportionality  y=kx, where k is the constant of proportionality:

Hence, B is 4 times the volume of A

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.

are you an artist's daughter? cuz dang you a fine piece of art, girl.