Answer:

Step-by-step explanation:
we know that
To multiply numbers in scientific notation, first multiply the coefficients and then add the exponents
we have

Answer:
5^15
Step-by-step explanation:
A power to a power you multiply
so you would get (5^27)/(5^12)
Division, you subtract the exponents
$60 x (100%+15%+7%) = $60 x 122% = $73.20
4.5 x 10^-5 is just 0.00045 and 1 x 10^-3 is 0.001
Answer:
$1.15
Step-by-step explanation:
6 pairs of socks cost $6.90.
so every sock is at least one dollar. one dollar per sock, then you take the .90 and divided between the 6 socks and you get 15, so one dollar and 15 cents per sock.
Hope this helps, have a nice day!