Abicycle store costs $3850 per month to operate. the store pays an average of $45 per bike. the average selling price of each bicycle is $155. how many bicycles must the store sell each month to break even?

155-45=110

3850÷110=385 bicycles

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,