Solve the problem.If (a, 3) is a point on the graph of y = 2x - 5, what is a?
A. 1
B. -4
C. -1
D. 4
Answer: D
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Find the indicated cardinal number.Find n(A × C) given that A = {2} and C = {4, 5, 6}.
A. 2 B. 3 C. 4 D. 1
Write a matrix to display the information.At a store, Sam bought 2 batteries, 12 60-watt light bulbs, 41 100-watt light bulbs, 11 picture-hanging kits, and a hammer. Jennifer bought 12 batteries, 5 100-watt light bulbs, and a package of tacks. Write the information as a 2 x 6 matrix.
A. 
B. 
C. 
D. 
For each of the following statements, (1) write the statement informally without using variables or the symbols ? or ?, and (2) indicate whether the statement is true or false and briefly justify your answer.
(a) ? real numbers x, ? a real number y such that x < y. (b) ? a real number y such that ? real numbers x, x < y.
Fill in the blank with one of the words or phrases listed below.
Fractions that represent the same portion of a whole are called 
fractions.
A. undefined B. like C. simplest form D. equivalent