1.
What best describes the equation 2(4 + 6) = 20?
A.
true
B.
none of these
C.
open
D.
false
Hint
2.
What best describes the equation 14 - 2
x
+ 10?
A.
false
B.
open
C.
true
D.
none of these
Hint
3.
Which is a solution to the equation
A.
5
B.
120
C.
150
D.
80
Hint
4.
What best describes the equation
A.
none of these
B.
true
C.
false
D.
open
Hint
5.
What best describes the equation
A.
none of these
B.
open
C.
false
D.
true
Hint