Answer:
r=40% or .4
Step-by-step explanation:
32=16(1+r)^2
-5/2
20
7 x 4 = 28
so you do 5 x 4 and get 20
LOL HAHAHAHAHA
answer: 2
7/18
²=((2*7)+4)/7
2*7=14
14+4=18
18/7⇒7/18