On a set of blueprints, a 12-foot wall is represented by a 6-inch line segment. What scale is used in the blueprints?

A. 6 feet : 1 inch
B. 6 feet : 2 inches
C. 2 feet : 2 inches
D. 2 feet : 1 inch

D.

Step-by-step explanation:

We're working with ratios here. To get this answer, let's think of fractions. When you're simplifying, you do the same thing to the top as to the bottom. Same with ratios! To get from 12 to 2, we divide by 6. We do the same to 6. 6 divided by 6 is 1, so D is the right answer.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry