Answer:
Explicit formula: 
Step-by-step explanation:
Let the number of squares in 
layer be 
Given:
Number of squares in first layer, 
Number of squares in second layer, 
Therefore, the number of squares increases by a factor of 2.
So, it follows a geometric sequence with the first term as 6 and common ratio of 2.
For a geometric sequence, the term with common ratio 
is given as:
Here, 
∴ Explicit formula:
Answer:
B
Step-by-step explanation:
2 12 24
- x - = - = 8
3 1 3
8 of the stickers are dogs
Answer:
D 133 degrees
Step-by-step explanation:
The measure of an angle external to a circle = the difference of the two arcs intercepted divided by 2
47 = [ (360 - x) - x ] / 2
94 = 360 - 2x
x = 133 degrees of the arc
Answer: 
or 
Step-by-step explanation:
First, you can convert the mixed number 
into a decimal number. To do this, you need to divide the numerator (which is 1) by the denominator (which is 2) of the fraction:
Now you must add 0.5 to the whole number part. Then:
In order to find the ratio of cleaner to water, you must divide 1.5 cups of cleaner by 12 cups of water.
Therefore, the ratio is:
or
