Lesson 8
22. A year ago when Grandma moved in with the Ulrichs,
Marlene gave up her bedroom and moved into a smaller
1
room that had been a sewing room. The room is 11
feet
wide, 13 feet long, and 8 feet high. It has one door that is 3
1
feet wide and 7 feet high, and a window that is 2
feet wide
and 4 feet high. Sally and Marlene are planning to repaint
the ceiling and walls.
3¬
8¬
2.5¬
2.5¬
7¬
4¬
13¬
11.5¬
a. How many square feet of wall space does the room have,
not counting the door and window?
b. How many square feet of ceiling does the room have?
Write as complex fractions.
5
3
1
3
7
23. a.
÷
=
b. 3
÷ 6
=
c. 4
÷ 5 =
9
5
3
4
8
Find the sale price.
24. The regular price was $25.45. The sale is 12% off.
The sale price is
.
Simplify the expressions
16
25. a. 21 – (
b. 3x + 6 – 2x – 4
c. (9x)4
d. 7
+ 5)2
=
3
4
36