Consider the Boolean expression shown:

ab+bc+b(d+a)

How many variables are used?

How many rows would the entire truth table have?

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Which operation is represented by this truth table?

A	B	out
1	0	1
1	1	1
0	0	0
0	1	1

Group of answer choices

AND

OR

NAND

XNOR

NOT

NOR

XOR

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This is the truth table for which expression?

x	y	z	out
0	0	0	0
0	0	1	1
0	1	0	0
0	1	1	0
1	0	0	1
1	0	1	0
1	1	0	1
1	1	1	0

Group of answer choices

(x+y)(y+z)

none of these

(x+z)(x+y)(x+z)