Define the domain
define the range
where is the graph increasing where is the graph decreasing identify any relative maximums identify any relative minimums

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 ?

For how answer my question this will be the last question can you answer in math subject

Anyone know? will mark brainliest if correct