1.
Solve 5(
k
– 2) = 10(3
k
+ 9).
A.
k
= 5
B.
k
= -4
C.
k
= 4
D.
k
= -5
Hint
2.
Solve
A.
B.
All real numbers
C.
D.
Hint
3.
Solve 7(
x
+ 2) – 10 = 7
x
+ 4.
A.
x
= 1
B.
All real numbers
C.
x
= -2
D.
Hint
4.
The area of a rectangle is 144 cm
2
. Find the value of
x
if the rectangle's dimensions are 6 cm and (4
x
+ 4) cm.
A.
x
= 4 cm
B.
x
= 6 cm
C.
x
= 5 cm
D.
x
= 7 cm
Hint
5.
Solve
A.
r
= 0
B.
All real numbers
C.
D.
r
= 3
Hint