Hi can someone helps me please may have to zoom in a little to see the math problem!!?

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 ?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Which of the following is true for the relation f(x)=2x^2+1