1.
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.''
A.
6 + 3
x
B.
6 + 3
x
2
C.
6(3
x
)
D.
6(3
x
)
2
Hint
2.
Solve the equation
x
– 82 = 143
A.
225
B.
C.
61
D.
-61
Hint
3.
Solve the equation
A.
9
B.
C.
-1
D.
20
Hint
4.
Solve
A.
B.
C.
D.
Hint
5.
Solve
A.
–21
B.
7
C.
–25
D.
–7
Hint