Simplify the imaginary number square root of -12

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 ?

An equation where variables are used to represent known values—function notation true or false

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3