Decreased by 25%
find 25% of 12 and decrease 12 by it
percent means parts out of 100
25%=25/100=1/4
'of' means multiply
25% of 12=1/4 times 12=3
decrease 12 by 3
12-3=9
answer is 9
65 % is bigger than 16/25
0.144 because the number after 3 is 5 and that rounds the 3 to a 4.
D. 200%
if 8 is a whole (100%) and 16 is twice of that, you can conclude that her speed increased by 200%
6^2+8^2+10^2 by pythagoras theorem
