He revenue for a business, as a function of units produced, x, is shown below by r(x). c(x) represents the cost of producing x units. calculate the profit function and then determine how many units must be produced for the business to break even.
r(x)=
r(x)=
\,\,20x
20x
the revenue function.
c(x)=
c(x)=
\,\,4x+1024
4x+1024

sorry i dont know my friend

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.