Student Name: Fall
2026
Math 1090-502 Business College
Algebra
Midterm Exam 3— Exponential and
Logarithmic Functions Financial Mathematics
with 100% accurate solutions
Elizabeth Jones
Fall 2026
Math 1090 Financial Formulas
, I = Prt
kt nt
or P or At
pert
APY= 1+ — 1 or Y = 1+
k n
t t
or At =
Instructions: Carefully read each problem. Please clearly box or circle your answers.
Work carefully and neatly, appropriately justifying your solutions with relevant
work/reasoning for each question. You have 90 minutes to complete the exam. This exam
has 13 questions from Modules 5 6. Each problem is labeled with its point value and the
total exam is worth 100 points.
1. The number of people in a certain region that drink a specific coffee brand has an annual
growth rate of 5.15% per year. It is estimated that the number of people that liked this coffee
in the year 2010 was 10800.
a. (4 points) Find an exponential model of the form A = PCI + that models the number
of people that drink this coffee t years after 2010 (use t=0 for 2010).
2026
Math 1090-502 Business College
Algebra
Midterm Exam 3— Exponential and
Logarithmic Functions Financial Mathematics
with 100% accurate solutions
Elizabeth Jones
Fall 2026
Math 1090 Financial Formulas
, I = Prt
kt nt
or P or At
pert
APY= 1+ — 1 or Y = 1+
k n
t t
or At =
Instructions: Carefully read each problem. Please clearly box or circle your answers.
Work carefully and neatly, appropriately justifying your solutions with relevant
work/reasoning for each question. You have 90 minutes to complete the exam. This exam
has 13 questions from Modules 5 6. Each problem is labeled with its point value and the
total exam is worth 100 points.
1. The number of people in a certain region that drink a specific coffee brand has an annual
growth rate of 5.15% per year. It is estimated that the number of people that liked this coffee
in the year 2010 was 10800.
a. (4 points) Find an exponential model of the form A = PCI + that models the number
of people that drink this coffee t years after 2010 (use t=0 for 2010).