Please help math equations

Question

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	25	50	75
Total Rental Cost	$475	$700	$925

You

What is the base price for the ballroom rental?

A. 

$50

 B. 

$9

 C. 

$250

 D. 

$225

Answer 1

475-50= 425. 425/25 = $17 for dinner

700-50 = 650. 650/50 = $13 for dinner

A is wrong

475-250 = 225 225/25 = $9 for dinner

700-250 = 450. 450/50 = $9 for dinner

C is correct. base price = $250

925-250 = 675. 675/75= $9 for dinner