Percentages-Expoential functions along with some linear 4 problems

percentages, functions and exponential and linear. All in pictures below. four questions. Thank you!!

Writing Linear and Exponential Equations
When a new charter school opened in 1990, there were 840 students enrolled. Using
function notation, write a formula representing the number, N, of students attending this
charter school t years after 1990, assuming that the student population:
N(t)
a) Increases by 73 students per year
Preview
(t) =
b) Increases by 12% per year
Preview
N(t)
=
c) Decreases by 24 students per year
Preview
(t) =
d) Decreases by 8% per year
Preview
N(t) =
e) Remains constant (does not change)
Preview
Writing Linear and Exponential Equations
When a new charter school opened in 1990, there were 920 students enrolled. Using function notation, write a
formula representing the number, N, of students attending this charter school t years after 1990, assuming that
the student population:
Increases by 68 students every 4 years
N(t) =
Preview
Decreases by 60 students every 2 years
N(t) =
Preview
Increases by 11% every 4 years
N(t) =
Preview
Decreases by 6% every 3 years
N(t) =
Preview
Increases by 56 students every semester (twice each year).
N(t)
Preview
Increases by 23% every quarter (4 times per year).
N(t) =
Preview
After graduating from college, Carlos receives two different job offers. Both pay a starting salary of
$65000 per year, but one job promises a $3250 raise per year, while the other guarantees a 4% raise
each year.
Complete the tables below to determine what his salary will be after t years.
Round your answers to the nearest dollar.
t years
1
5
10
15
20
Salary with $3250 raise per year
1
5
10
15
20
t years
Salary with 4% raise per year
Writing Linear and Exponential Equations
When a new charter school opened in 1990, there were 810 students enrolled. Using function notation, write a
formula representing the number, N, of students attending this charter school t years after 1990, assuming that
the student population:
Increases by 72 students every 4 years
N(t)
=
Preview
Decreases by 32 students every 2 years
N(t) =
Preview
Increases by 6% every 4 years
N(t) =
Preview
Decreases by 9% every 3 years
N(t) =
Preview
Increases by 36 students every semester (twice each year).
N(t) =
Preview
Increases by 23% every quarter (4 times per year).
N(t) =
Preview