320 guests / 5 servings per can = 64 cans required
The answer is C. It has a high density
1) 10.25 x 10^9 in scientific notation is 1.025 x 10^10
2) Now you have to subtract 10.25x10^9 - 3.0x10^7
To make that you have to put both numbers with the same power of ten.
1025x10^7 - 3.0x10^7 = 1022x10^7 more pennies than half-dollars.
for the first time in a few days and
D. It is not a function because there are multiple outputs for one input.