Help ! i am getting really confused reading this!!!!

Tabitha is renting a ballroom for an upcoming dinner reception. The rental fee for the ballroom includes a base price plus the cost of dinner per person. The table below shows the cost of the ballroom rental in relation to the number of people attending the dinner reception.

No. of Attendees 15 30 45
Total Rental Cost $375 $480 $585

What is the base price for the ballroom rental?
A. $270
B. $7
C. $105
D. $54

Question

Help ! i am getting really confused reading this!!!!

Tabitha is renting a ballroom for an upcoming dinner reception. The rental fee for the ballroom includes a base price plus the cost of dinner per person. The table below shows the cost of the ballroom rental in relation to the number of people attending the dinner reception.

No. of Attendees	15	           30	           45
Total Rental Cost	$375	$480	$585

What is the base price for the ballroom rental?
	A. 	 $270
	B. 	 $7
	C. 	 $105
	D. 	 $54

anonymous · Answer

I'm confused too omfg

anonymous · Answer

cost = base + (number of people)(price per person)

use their numbers to find base. 

get cost per person from 
change in cost/change in # people

anonymous · Answer

true @shoplovepc  lol

anonymous · Answer

I think I get it!

anonymous · Answer

and what do you mean?@douglaswinslowcooper

anonymous · Answer

the price goes UP by 105 per 15 extra people

anonymous · Answer

oh wow your right lol

anonymous · Answer

@douglaswinslowcooper is that right?

anonymous · Answer

wait its asking what the base price for the ball room

anonymous · Answer

Thus cost = base + (number of people)($7/person)

so 375 = base + 15(7) = base + 105

base = 375-105 = 270     

A is answer.

anonymous · Answer

@douglaswinslowcooper that makes more sense @Louis_Tomlinson_Girl nvm I was wrong lol

anonymous · Answer

wow that was a long question thanks to both of you ( i wish i could give out 2 metals!