Math is very difficult for me. please don’t leave a link

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Aline passes through 3,7 and 6,9 what equation represents the line