Find an equation of the line. Write the equation in standard form.
Horizontal; through (3,-9)

  y = -9

Step-by-step explanation:

Standard form of the equation of a line is ...

  ax + by = c

When that line is a horizontal line, this can be reduced to ...

  y = c

The value of c must be the same as the y-coordinate of the point you want this line to go through.

  y = -9 . . . . . . horizontal line through (3, -9)

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.

it could be 1,3 and more others to create a cylinder.

step-by-step explanation: