Answer:
Equation for the relationship between the weight and number of months -

Step-by-step explanation:
Given
The initial weight of young sumo wrestler just before he decide to gain more weight is equal to
kilo grams.
The new weight of young sumo wrestler after eight months is equal to
kilo grams.
Weight gained by sumo wrestler during the period of eight months

The rate at which weight was gained

kilo grams per month
Let W(t) depict the weight after 8 months
t depict the time period in moths
So the equation would be

Where
Initial weight before 8 months
time in months
Answer: 63 as a decimal is 0.63
Step-by-step explanation:

Actually Welcome to the Concept of the Functions.
so after plotting the graphs, we get as,
==> m = 2.5
==> b = 0
==> y = mx+c
a straight line
You can get all the answeres easily.
Heres number 1: -1/5
Answer:
Area_ACD = [AC*CD*sinC]/2
Area_BCE = [BC*CE*sinC]/2
AC*CD = BC*CE (as Thales theorem AC/CE = BC/CD)
Then, Area_ACD = Area_BCE