Marcia can make 5 candles in an hour. kevin can make only 4 candles in an hour, but he already has 7 completed candles. explain to marcia how she can use a system of equations to determine when she will have the same number of candles as kevin. use complete sentences.

M = marcia's total amount of candles

k = kevin's total amount of candles

h = amount of hours

so in 1hr she makes 5(1), in 2hrs she makes 5(2) and 3 she makes 5(3), in "h" hours she makes 5h.

kevin makes in 1hr 4(1), in 2hrs 4(2) and 3hrs 4(3), in "h" hours 4h.  But kevin already has 7 candles done from the day before, so the 4h is really additional to his 7 candles.

C. X-Y X-Y

Step-by-step explanation:

The question asks to identify the least amount of discount on the conference registration. If the registration discount is at least half of the possible saving of ROB then all attendees will stay within the block. X is the block rate and Y is the non block rate. The saving for staying two nights outside the block is 2 (X-Y)