(1) Repetition allowed : There are 4 choices for both positions, so 4 × 4 = 16 2-digit numbers can be formed. (2) Repetition not allowed : There are 4 options for tens position, and three options for ones position. Therefore, 4 × 3 = 12 2-digit numbers can be formed.
For this case we assume that the photo album is rectangular in shape and therefore the fabric too. By definition, the area of a rectangle is given by:

Where:
a: It is the length of the rectangle
b: It is the width of the rectangle
According to the problem data we have to:

Substituting:

We clear "a":

Thus, the length of the fabric is 
ANswer:
The length of the fabric is
Answer:
Tuesday A (40) B(12)
A(15 feet )B(3,2,1)
Step-by-step explanation:
Answer:
The answer to your question is: The forth one is the right option
Step-by-step explanation:
Graph each of the inequalities
a) y - 6 ≤ 0 but y = 6 find this line in the graph and all the points below it are shaded. It's not a dotted line
b) y < 1/3 x + 4 but y = 1/3x + 4 It's a dotted line with intercepts (0.4) and ( 12,0), and only need the points below this line
c) y + 6 > -3x but y = -3x - 6 It's a dotted line with intercepts (0,-6) and (-2,0), and we need the points up the line