Georgia uses the high-low method of estimating costs. Georgia had total costs of $24,225 at its lowest level of activity, when 5,700 units were sold. When, at its highest level of activity, sales equaled 14,200 units, total costs were $83,300. Georgia would estimate variable cost per unit as:

Lillypad toys is a manufacturer of educational toys for children. six months ago, the company's research and development division came up with an idea for a unique touchscreen device that can be used to introduce children to a number of foreign languages. three months ago, the company produced a working prototype, and last month the company successfully launched its new device on the commercial market. what should lillypad's managers prepare for next? a. increased competition from imitators b. a prolonged period of uncontested success c. a sharp decline in demand for the product d. a difficult struggle to move from invention to innovation