Pls help
express 4/5 as a percent

80%

1/5=20%

2/5=40%

3/5=60%

4/5=80%

80%

Step-by-step explanation:

4/5 is 80% percent because 4 is half of 8, and 5 is half of 10 so its two less even for one off so the answer is 80%

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: