1.
Solve
k
=
k
-
.
A.
-2
B.
-
C.
2
D.
Hint
2.
Solve
y
- 5 = -1 +
y
.
A.
-8
B.
8
C.
16
D.
-16
Hint
3.
Solve 75 - 9
h
= -20 + 10
h
.
A.
-55
B.
-5
C.
55
D.
5
Hint
4.
Write an equation to find the value of
x
so that each pair of polygons has the same perimeter. Then solve.
A.
4
x
+ 8 = 3
x
+ 9; 3
B.
4
x
+ 9 = 3
x
+ 8; -1
C.
4
x
+ 8 = 3
x
+ 9; 1
D.
2
x
+ 4 = 3
x
+ 9; 5
Hint
5.
Write an equation to find the value of
x
so that each pair of regular polygons has the same perimeter. Then solve.
A.
8
x
+ 4 = 10
x
; 2
B.
2
x
+ 1 = 2
x
; 1
C.
8
x
+ 4 = 12
x
; 1
D.
8
x
+ 1 = 12
x
; 1
Hint