With reference to source 3 (Nonius Balbus of Herculaneum) and source and your own knowledge, what does this reveal about the political life in Pompeii and Herculaneum?
Other things being equal, what increase in investment is required to produce a $400m increase in national income in an economy with a MPS of 0.2?
a) $80m
b) $320m
c) $400m
d) $2000m
also plz show working to help
Cheers:)