Answer:
the middle sign
Step-by-step explanation:
It asks to "Find the unit price in dollars per padlock"
The phrasing "dollars per padlock" is the same as "dollars per 1 padlock"
In other words, the teacher wants to know how much 1 padlock costs.
7 padlocks : $23.80
7/7 padlocks : $23.80/7 .... divide both parts by 7
1 padlock : $3.40
We see that 1 padlock costs $3.40, so the unit cost is $3.40 per padlock
0.01 of the original rectangle, or as a fraction, 1/100
Answer-
40.5
Explanation-
Radius should be the half of the area, I guess..
40 doubles every 15 hours
40hours / 15hours = 2 and 2/3
2 2/3 x 40 =
106 and 2/3, rounded to 107
Hope this helps