2. To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for
each hour of labor.
A
4,000
3.000
y (dollars)
2,000
1,000
10 20 30 40 50 60
x (hours)
How much would the painting company charge to paint a house that needs
20 hours of labor? A house that needs 50 hours?
1.

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?