A=2x+y²/7 make y the subject of the formula

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 t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

What is the solution to the division problem below x3+x2-11x+4/x+4