11(2x + 1) = 4x - 7
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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 ?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

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