Answer:
12.5%
Step-by-step explanation:
[First Value – Second Value] ÷ [(First Value + Second Value) ÷ 2] × 100
[50 - 30] ÷ [ 50 + 30] ÷ 2 × 100
20 ÷ 80 ÷ 2 × 100
0.25 ÷ 2 × 100
0.125 × 100
12.5 %
The only correct statement is that ratios are not fractions.
Seems like you had your minus signs backwards. Try y = 3 and y = -6
Oh I used to know this I wish I could help u so so so so sorry