An= a1r^(n-1)
a7= 27(1/3)^(7-1)
= 27(1/3)^6
= (1/3)^(-3) * (1/3)^6
= (1/3)^(-3+6)
= (1/3)^3
= 1/27 #
Answer:

Step-by-step explanation:

Given:
Substitute the given value into the formula and solve for r:









Answer:
D: 200 rulers for $30.00. You have quite a few choices! You may need to find out the percentage [%] of each first.
Step-by-step explanation:
A: 1 Ruler for $0.25
B: $0.30
C: $0.20
D: $0.15
Answer: OPTION C.
Step-by-step explanation:
Given the following formula:

You know that "S" is the smelliness of cheese, "B" is the number of bacteria in the cheese and "A" is the surface area in square centimeters of the cheese.
For example, suppose that there are
in a surface area of
.
Substitute into the formula these values:
And then evaluate:

Therefore, you can conclude that the appropriate measurement unit for "S" is:

Answer:
3/2
Step-by-step explanation:
The ratio of perimeters of similar polygons is the same as the ratio of the lengths of corresponding sides.
WX/AB = 12/8 = 3/2