Use the depreciation formula.

Where 'p' is the principal value, 'r' is the rate it depreciates, and 'n' is the time. Just plug in what we know:

Simplify by subtracting:

Simplify the exponent:

Multiply:
Answer:
Step-by-step explanation:
what r u tyring to find there is no question,
answer this and i really can help.
Answer:
y = 3x - 5
Step-by-step explanation:
Slope m = 3
Using (1,-2)
Slope-intercept: y = mx + b
-2 = 3(1) + b
-2 = 3 + b
b = -5
then y = 3x - 5
8x - 33 = - 4x + 15
12x = 48
x = 4
Then substitute x back into a original equation to find y
y = (8x4) - 33
y = 32 - 33
y = - 1
So the answer is x=4 and y=-1