X=2m-nx-4
If you need help just ask me.
Answer:e
Step-by-step explanation:
The equation for the submarine is given as y =-240x
Where y is the distance of the descent
x is the time in hours
and -240 is the rate of distance per unit time
To calculate how long it will take this submarine to reach the descent
x = y /-240

We need to find the number of pies baked in years 1 and 2.
There were 148 pies baked in year 1. 
There were
pies baked in year 2. 
Rearrange the terms so the variable is first. 
(x-4i)(x+4i)=x^2+16
(x^2+16)(x-5)=x^3-5x^2+16x-80
Answer is B