Refer to the figure below and assume that the values for pointsa,b, andc(the combined value of consumer goods and capital goods) are $10 billion, $20 billion, and $12 billion, respectively.

Instructions:Enter your answers as a whole number.

a. If the economy moves from pointato pointbover a 70-year period, what must have been its annual rate of economic growth?

percent

b. If, instead, the economy was at pointcat the end of the 70-year period, by what percentage did it fall short of its production capacity?

percent