Design = $45
rate per child = $5.50
number of children, x
total cost, f(x) = $5.5x + $45
The first inequality is
(2/3)x - 3 ≥ y
or
y ≤ (2/3)x - 3 (1)
The second inequality is
y + (2/3)x < 4
or
y < 4 - (2/3)x (2)
A graph of the two inequalities indicates the solution as a shaded region in the figure below.
Terms they are examples of terms.