Write an equation, in slope-intercept form(y = mx + b) that models the total cost of the rental over time.

How do i do this activity, is appreciated

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units