The selling price of an item is $600. It is marked down by 10%, but this sale price is still marked up from the cost of $450. Find the markup from cost to sale price.
The markup is $ (Round to the nearest dollar as needed.)

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

answer: it is 8

step-by-step explanation:

you know why its 8

question: use the following table of a school bus during morning pickups to calculate its average speed between 2.8 km and 4.2 km

answer: 42 km/h

explanation: 1.4/0.033 42.42424 = 42 km/h

question answered by

(jacemorris04)