21x 2
14x
12)
÷
12)
10y
25y
4
7
9
13)
÷
13)
·
7
4
16
77
8
11
14)
÷
14)
·
4
49
7
Decide whether the given replacement value is a solution of the given equation.
8
8
15) Is
a solution to 9x =
?
15)
63
7
Solve. Write the fraction in simplest form.
3
16) A storehouse stores 610 different inventory items.
of these items are perishable.
16)
10
How many of the inventory items are perishable?
17) Find the area of the rectangle. Write the answer in simplest form. Recall that the area =
17)
length · width.
6
A =
foot
13
1
B =
foot
3
Add or subtract as indicated. Write the answer in simplest form.
3
3
18)
18)
+
8
8
15
5
19) -
19)
+
16
16
2