D.) equilateral triangles are acute.
- In an equilateral triangle, the 3 angles are always 60 degrees.
I think this is invalid because it is a convenience sample. All of the 5th graders she asked were her friends, and they were all in the art club.
Answer:
7.429 cents
Step-by-step explanation:
Given that:
Price change = $1.51 to $2.03
Period of time = 7 years
Therefore, the annual inflation rate :
Difference in price / number of years
($2.03 - $1.51) / 7
$0.52 / 7
= 0.0742857 per year
= 0.0742857 * 100 (about 7.429 cents per year)
It's B Rotation I believe