The table shows the price for different numbers of notebooks: Number of Notebooks Price (in dollars)
2 12
3 18
4
5 30

What price should 4 notebooks cost if the relationship represented is proportional? (5 points)

Solve the formula ax+ by = c for x.

Which of the following shows the graph of y=2e^x?

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image