Barry draws the model below and says it proves that 1,243 : 3 = 481. What mistake does Barry make?
400
80
1
3
1,200
240
3
The model shows a quotient of 484.
The model shows a dividend of 1,443,

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle