Mrs mayuko paid $40.38 for a 3kg of shirmp whats the cost of 1kg of shrimp

Which letters from the table represent like terms? a and b b and c a and d b and d

I'm confused on this could anyone me and show me what i need to do to solve it.

My final challenge question of the day! i have no tests, nothing to do this for, it is simply giving away free points for a you tube video! so 50 free points for answering the most simple question ever! here is the key to getting brainiest for this question. answer in under 50 seconds. you think you can do it. i think you can. here is the question: 1x2= i know! easiest question ever! and yes! if you answer this question, you will be on you so come on and get the free 50 while you can!