F(g(3))
f(4 * 3^2 + 9)
f(45)
3 * 45 - 1
134
Answer:
75% bigger
Step-by-step explanation:
Let the first number be x and the second be y.
So:

And:
-----30% less than x
Substitute
in 




Cross multiply


Collect like terms


Make x the subject


So, the average is:




Rewrite as:

Express as percentage

This means that the average is 75% bigger than the second number
Can you take a better picture
Step-by-step explanation:
Taking any two points through which the line passes;(-10,-3) and (-5,-1)
The equation of the line is given by





=> 5y+15 = 2x+20
=> 5y =2x+5

option C
Answer:
n = r - 2.5
Step-by-step explanation:
The discount Khalid is giving is $2.5 off, so the equation represents the neighbors' price equals the regular price minus 2.5.