The function g(x) = x2 + 3. the function f(x) = g(x+2)

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 the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Need same math paper but the back now i hope your able to read it cleary i need with hw