SARE The department store sells logo t-shirts at an original
price of $12.50. Every month that a t-shirt doesn't sell, the
store reduces the price by 25%. Brianna calculated the
price after two reductions:
$12 50 - (512 50)(0.25) - ($12.50)(0.25). -
56.25
What is Brianna's error?

Brianna did not use  the first sale price for the second markdown.

The first price discount makes the cost $9.38.

The second price reduction takes another $2.35 off.  

The selling price of the shirt after two markdowns is $7.03.

Step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.