Answer:
-20%
Step-by-step explanation:
If you see the values, I see a change from 70 (old) to 56 ( new ) as a decrease . Therefore using the Percent change formula : [(56-70)]/76]*100% = (-14/70)x 100% = -0.2 x 100% = - 20%
The answer is -20%
3.7
2r(pi)(∅/360)
2*3*(pi)*(70/360)
6*(pi)*(0.19444...)
3.665191429188092
-.5
Answer:the first option