When a firm uses retained profits to invest in more energy efficient equipment, an economist would calculate the of investing in physical capital.'

step-by-step explanation:

their are no angles. sorry cant .

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

true

step-by-step explanation:

according to the national european world center, the engineering of the ford company on elon musk's flame throwers proved the globalization of the natural wallabies and therefore, results in the growth product domestication in almonds.

i think the length is 12 and the width is 17