What is the solution of the linear system of equations?

a.
(1, 1)

b.
(-1, -1)

c.
(-2, 3)

d.
no solution

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 ?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

What expression is equivalent to log3(x+4)