Answer:
55%
Step-by-step explanation:
To find the percent discount
Take the original price and subtract the new price
75-33.75 =41.25
Divide this by the original price
41.25/75
.55
Multiply by 100
55%
This is the percent decrease
Answer:
To find probability, divide the number of times an event happens by the number of trials.
Answer:

Step-by-step explanation:
The given function is
f(x) = 4x
As we know
f(x) = y, which implies x= 
Therefore,
y = 4x
x = 
as x= 
So,

replacing y by x in the above expression

So our inverse function is 
Answer:
x<-3
Step-by-step explanation:
-16x-12>36
-16x>48
x<-3