Answer:
63 + 10
Step-by-step explanation:
when you do parenthesis and the number is next to another one with no symbol you multiply so 4-2 = 2 2 x 5 = 10 giving you 63 + 10
Answer:
D=m/v
=225g/15cm^3
=15g/cm^3
Step-by-step explanation:
The formula for calculating density is: density=mass/volume.
after collecting data you will see that all the data is already in the question and there's no need to convert any units. Divide the mass by the volume and you'll have the density in g/cm^3
The way you wrote the question was a bit confusing. Also, there are two variables here. To find the one variable (the number of rolls of wrapping paper) we need to find the number of packages.

In this case the 5 is on top so it is the Numerator