So you know the merchant made a 15% profit on the pen, so she bought it for a cheaper price. To find the cost of the pen before you have to take the price now, $6.90 and times it by 85%. You do 85% because you subtract the 15% she saved from 100% and you get 85%. So 6.90x.85= 5.865 which rounds to $5.87
Convert from Oz and Lbs.
1 Pound = 453.59237 Grams
1 Ounce = 28.3495231 Grams
3628.73896 for Lbs
141.7476155 for Oz
Add them, and you get:
3770.4865755
I didn't know if you needed rounding - it was classified as college.
Hope this helped, and have a good day!
Answer: 8 pi
Step-by-step explanation: So we know that area of a circle is pi times r^2 so if we reverse that formula it would be square root of 16 pi which would be 4 pi and divide by pi so the radius is 4. And we know that the formula for circumference is 2 times pi times r, so 2 times 4 times pi is 8 pi. 8 pi is the cIrcumference! :)
Answer: No.
Step-by-step explanation: g should also be factored out. 10g(a - 3z).