Question

A roast chicken with a base price of $6.89 is marked up by 21%. What is the new price, to the nearest cent?

a.
$12.33
b.
$9.97
c.
$8.34
d.
$7.10

Answer 1

6.89(1.21) = 8.3369 rounds to 8.34 <==

or u could also do it this way...
6.89 + 0.21(6.89) = 6.89 + 1.4469 = 8.3369 rounds to 8.34 <==

Answer 2

Answer:

Option C is correct.

Step-by-step explanation:

Base Price of a roast chicken = $ 6.89

Increase in Price = 21 %

So,

New Price = Base price + Increased amount

                 =  6.89 + 21 % of 6.89

                 =  $6.89+\frac{21}{100}\times6.89$

                 =  $6.89+\frac{144.69}{100}$

                 =  6.89 + 1.4469

                 =  8.3369

                 =  $ 8.34 (to nearest cent)

Therefore, Option C is correct.