Is y=2x to the 3rd power +1 linear or nonlinear ?

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?

Carly stated, “all pairs of rectangles are dilations.” which pair of rectangles would prove that carly’s statement is incorrect?