Which expression is equivalent to 1/8x−1/2 ? 1/8(x−1/2) 1/8(x−4) 1/8(x−1/4) −1/8(x−4)

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 ?

Which of the following is the graph of y= square root -x-3

Factor this polynomial completely. x^2-8x+12