A human hair is approximately 40 microns (um) wide. If 1 um is equal to 10 -6
meters (m),
and 1 nanometer (nm) is equal to 10-9m, then how many nanometers wide is a human hair?
A
0.0004 nm
B
0.004 nm
C
4,000 nm
D
40,000 nm

Plz which expression is equivalent to the expression below?

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright