Need help i attached images below i will give to who ever answers first

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 ?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting