From the set {0, 1, 11}, use substitution to determine which value of x makes the equation true.

23x + 27 = 50
a. 11
b. 0
c. 1
d. none of these

2. from the set {0, 1, 10}, use substitution to determine which value of x makes the equation true.

23x + 29 = 52
a. 10
b. 1
c. none of these
d. 0

3.
add 5 and b. then, multiply by 2.

which of the following expressions matches the statement above?
a. 5 + b × 2

b. (5 + b) × 2

c. 5 × (2 + b)

d. b + 5 × 2

4. what is the absolute value of the number indicated on the number line below?

-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
a. -18
b. 17
c. -17
d. 18