At a concert, 20% of the audiences is sitting in the balcony. If there are 450 people sitting in the balcony, what is the total number of people at the concert?

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.