Select the correct answer. Find the area of the rectangle below.
(3x + 4) feet
(x + 3) feet
(3x2 + 15x + 12) square feet
(3x2 + + 13x + 7) square feet
(3x² + 13x + 12) square feet

30 people weigh 160 pounds or more

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)