During reagan's administration, the national debt rose to just over
a) 500 billion dollars
b) 750 billion dollars
c) 1 trillion dollars
d) trillion dollars

idk

explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without