Acre middle school spent $1443.20 on 55 math books. how many did each book cost

The soup shack usually makes tomato soup with 99 tomatoes for every 1212 cups of soup. today, they made 88 cups of soup with 66 tomatoes. how does today's soup compare to the usual recipe?

How do i do this activity, is appreciated

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?