Solve the problem.Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB and interpret the significance of the entries of this product.
A.
AB = 
Tuition for Student 2 is $1101 and tuition for Student 1 is $822.
B.
AB = 
Tuition for Student 2 is $1095 and tuition for Student 1 is $809.
C.
AB = 
Tuition for Student 1 is $1095 and tuition for Student 2 is $809.
D.
AB = 
Tuition for Student 1 is $1101 and tuition for Student 2 is $822.
Answer: D
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Complete the exercises using counting techniques. A sports shop sold tennis rackets in 3 different weights, 2 types of string, and 4 grip sizes. How many different rackets could they sell?
A. 20 B. 9 C. 24 D. 18
Solve the problem.Indicate which digit in 5,138,353 has place value hundred thousands.
A. 0 B. 5 C. 1 D. 3
Add or subtract as indicated. You will need to simplify terms to identify like radicals.
- 
A. 12
B. -6
C. -30
D. -6
Find the values for b such that the trinomial is a square.x2 + bx + 20
A. 20, -20
B. 2
, -2
C. 10
, -10
D. 4
, -4