13. Marco took out an unsubsidized student loan for $20,000, which he will start paying in 4 years, after he graduates. If the interest rate is 4.2%, what is the amount he will owe once he
graduates?

Marco will owe $ 23,360 once he graduates.

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Principal of the loan = 20,000

Time in years = 4

Interest rate = 4.2%

2. What is the amount he will owe once he  graduates?

Let's use the formula of the interest simple, this way:

A = P * (1 + r * t)

where P is the principal of the loan, r the interest rate and t, the time in years.

Substituting with the values we know, we have:

A = 20,000 * (1 + 4 * 0.042)

A = 20,000 * 1.168

A = 23,360

Marco will owe $ 23,360 once he graduates.

you answer is a

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.