Aboat costs $11,850 and decreases in value by 10% per year. how much will the boat be worth after 8 years?
a. $4,590.93
b. $11,770.00
c. $25,401.53
d. $5,101.04

The boat  worth is  $5101.04  after 8 years .

Option D is correct .

Step-by-step explanation:

The decrease exponential function is written in the form

Where a is the initial value , r is the rate of interest in the decimal form and t is the time in years .

As given

A boat costs $11,850 and decreases in value by 10% per year .

a = $ 11850

10% is written in the decimal form

= 0.10

t = 8 years

Put all the values in the function

y = $5101.04

Therefore the boat  worth is  $5101.04  after 8 years .

Option D is correct .

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

150

step-by-step explanation:

(sorry i'm not typing it again just read the other two explanation sections i just typed it'll be the same.)