Answer:
20%
0.12
Step-by-step explanation:
Convert 1/5 to a percentage.
1/5 * 100% = 20%
Convert 12/100 to a decimal.
28/5= 5 3/5 15/7= 2 1/7 21/4=5 1/4
4(11-y)²-3y²=8
x+y=11
x=11-y