-8+y=14 Solve the equation for the value of the variable show all work please please help me:):)

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 ?

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?