Answer:
Step-by-step
If you don't want to have anything left over, then the highest common factor is
36: 2 * 2 * 3 * 3
45: 3 * 3 * 5
The highest common factor is 9.
So he can make nine packages with
4 pencils in each one and
5 erasers in each package.
138.248cm²
Step-by-step explanation:
Surface area=2πrh + 2πr²
Surface area=2x3.142x2x9+ 2x3.142x2²
Surface area=113.112+25.136
Surface area=138.248cm²
If x = 3y and 3y = x, then y = 1/3x.
n=32/5