Abicycle store costs $2,400 per month to operate. the store pays an average of $60 per bike. the average selling price of each bicycle is $120. how many bicycles must the store sell each month to break even?

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,