Answer:A≈254.47m²
Step-by-step explanation:
The best way to solve this is to put it into a proportion:

So you cross multiply to get:

(the 21 is from

•84)
Then multiply by

And you get $28, so the reduced price would be $28.
Answer:
B
Step-by-step explanation:
The small triangle is half the size of the entire triangle. 27/2 = 13.5
As they are similar corresponding sides are in the same ratio, so
18/15 = x / 4
x = 4*18 / 15
x = 4.8 answer