Answer:
A. 13m
Step-by-step explanation:
To find the area of a square you multiply Length by the Height. Since squares have equal length sides the number has to be the same for the length and the height.
13 x 13 = 169

Answer:

Step-by-step explanation:
Given

Required
Find the equation of the line
First, the slope of the line has to be calculated using the following formula;


So, the equation becomes



The equation of the line can then be calculated using



Multiply both sides by x


Add x to both sides


Reorder




Multiply both sides by x - 6



Add x - 6 to both sided



Hence, the equation of the line is 
X - number of dimes, y - number of quarters
x + y = 11
0.10 x + 0.25 y = 1.70
0.10 x + 0.25 ( 11 - x ) = 1.70
you can solve it:
0.10 x + 2.75 x - 0.25 x = 1.70
0.15 x = 1.05
x = 1.05 : 0.15
x = 7 ( a boy has 7 dimes and 4 quarters )
Answer: 0.10 x + 0.25 ( 11 - x ) = 1.70
Answer:
The common difference is 0.05.
Step-by-step explanation:
6.1 - 6.05 = 0.05
6.15 - 6.1 = 0.05