The equation is y=mx+c where m is the gradient and c is the y-intercept
61/100 would be the answer
If you are not implying multiplication between the 87 and the (24/25), then written as a decimal it would be: 87.96
C. g=-5 is the correct answer
425 tickets, if only 3 student tickets were sold... 428 total minus 3 student tickets = 425 adult tickets + 3 sold student tickets.