About how much of Earth's water is available for humans to use? a. 0.01%

b. 0.90%

c. 3.0%

d. 97.0%

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

you'll just earn points here

step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: