Suppose flaws (cracks, chips, specks, etc.) occur on the surface of glass with a density of four per square meter. What is the probability of there being exactly five flaws on a sheet of glass of area 2 square meters?

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

You can find the constant of proportionality by finding the ratio of