Question 2 of 20:

Suppose the cost of college tuition is expected to increase by [tex]$5 \%$[/tex] every year.

Which formula represents this increase?
[tex]\[ a(1+r)^x \][/tex]

A. [tex]$\$[/tex] 6,955[tex]$
B. $[/tex]\[tex]$ 7,342$[/tex]
C. [tex]$\$[/tex] 7,596[tex]$
D. $[/tex]\[tex]$ 7,235$[/tex]



Answer :

To determine the best answer choice for the question, let's follow the detailed steps for calculating the cost of college tuition after one year, given an annual increase rate of 5%.

1. Identify the initial cost of tuition:
The initial cost of tuition is [tex]$6,955. 2. Identify the rate of increase: The rate of increase is 5%, or 0.05 in decimal form. 3. Determine the time period: The time period we are considering is one year. 4. Use the formula for compound interest to calculate the new cost: The formula to calculate the future value given a constant percentage increase is: \[ \text{Final Cost} = \text{Initial Cost} \times (1 + \text{rate})^{\text{time}} \] Plugging in the values: - Initial Cost = $[/tex]6,955
- Rate = 0.05
- Time = 1 year

[tex]\[ \text{Final Cost} = 6,955 \times (1 + 0.05)^1 \][/tex]

5. Calculate the expression step-by-step:
- First, add 1 to the rate: [tex]\( 1 + 0.05 = 1.05 \)[/tex]
- Next, raise this sum to the power of the time period (which is 1 in this case): [tex]\( 1.05^1 = 1.05 \)[/tex]
- Finally, multiply the initial cost by this result:
[tex]\[ 6,955 \times 1.05 = 7,302.75 \][/tex]

Thus, the cost of college tuition after one year, accounting for a 5% increase, will be \[tex]$7,302.75. Given the answer choices: - A. $[/tex]6,955
- B. [tex]$7,342 - C. $[/tex]7,596
- D. [tex]$7,235 The closest and most accurate option matching our calculated value is $[/tex]7,342.

Therefore, the best answer is:
B. $7,342