Your starting salary at a new company is $34,000 and it increase by 2.5% each year. What will you salary be in 5 years? d) Your car cost $42,500 when you purchased it in 2015. The value of the car decreases by 15% annually. How much will your car be worth in 2022?

Given:

a)

The salary of the company in first year = $34000

The salary is increased by 2.5% each year.

To find the salary in 5 years.

Formula

If the original salary is x and is increased by b% every year, the salary after t years is =

Now,

Putting,

we get,

The salary after 5 years

=

=

= 38467.88 (approx)

Hence,

The salary after 5 years is $ 38467.88.

b)

Given:

The price of the car in 2015 = $42500

The value of the car decreased by 15% annually.

To find the price of car in 2022.

Formula:

If the original price is x and is decreased by b% every year, the price after t years is =

Now,

Putting,

we get,

The price of the car in 2022 is:

= (approx)

Hence,

The price of the car in 2022 is $ 13624.52.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!