Subtract it and you will find your answer hope this helps
Percent of decrease :
Original - New / Original
so...
80 - 52 / 80 ---->
28/80
.35 multiply by 100 to get percent
35% increase Hope I helped if you have any questions let me know! :)
Answer:
a = 12
Step-by-step explanation:

Convert element into fraction : 3= 3/1

Cross multiply

When you buy a coffee table or piece of circular furniture
= cos( -x ) * [ - sin( - x ) ] = cosx * sinx ;
cosx * sin x is the right answer !