Answer:
n x p = c
Step-by-step explanation:
n is the amount of pens so we time it by the cost of 1 pen which is p and the final answer is c as the cost of all the pen.

just to clarify the engineering notation, E6 is just 1 and 6 zeros, or a million, thus, 107,000,000 is just 107E6.
Answer:
12
Step-by-step explanation:
Given: Diagonal of square= 
To find the perimeter of square, we need to find the length of sides of square.
∴ Using the formula of diagonal to find side of square.
Formula; 
Where, s is side of square.
⇒ 
Dividing both side by √2
⇒
∴
Hence, Length of side of square is 3.
Now, finding the perimeter of square.
Formula; 
⇒
∴ 
Hence, Perimeter of square is 12.
Answer:
30m squared carpet is needed to cover the hallway and the living room.
Step-by-step explanation:
Living room area
6 × 4.2 = 25.2
Hallway area
3.2 × 1.5 = 4.8
Total area
25.2 + 4.8 = 30m squared
Im not too sure, but C might work as an answer...
Sorry if it's wrong :(