In a diagram of the circular flow of economic activity, businesses a. receive goods and services from productive markets. b. buy productive resources from resource markets. c. purchase goods and services from individuals. d. derive income from resource markets.

The correct answer is B.

Business have a double role in economy. They are the manufacturers that produce goods and services to satisfy the needs of consumers therefore, as the graph attached shows, they participate both in the factor and product markets:

the correct answer is

d) rocket launcher

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34