Answer:multiply 2.50 by 25 I think
Step-by-step explanation:
Answer:
424
let 's' = number of students
3/4s + 18 = 336
3/4s = 318
3s = 1272
s = 1272/3 = 424
82 with a remainder of 12.
x+3x-15=13
4x=28
x=7
......