Interest is calculated by multiplying an initial investment times the applicable interest rate and the period of time the money is used, whereas ? interest involves earning interest on the interest.
simple
compound

In simple interest, interest is calculated by multiplying an initial investment to the interest rate and the period of time money is invested.

In compound interest,Interest calculated on the interest earned.

Step-by-step explanation:

Simple interest :- In this method of interest calculation, interest is calculated by multiplying an initial investment to the interest rate and the period of time money is invested.

Let Money invested = P

Rate of interest = R %

Time = T

⇒ Simple interest ( S.I. ) =

Compound interest :- In this method of interest calculation, Interest calculated on the interest earned. The formula of compound interest is as follows :-

⇒ Compound interest ( C.I. ) = P   - P

i dont get the question

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.