Write an equation of the line that passes through the points (2, -3) and (1,4).
A) y = 7x - 17
B) y = 7x + 23
C) y = -7x - 11
D) y = -7x + 11

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Prove that 16^4-2^13-4^5 is divisible by 11.