Answer: 
Step-by-step explanation:
1. The problem asked for the product of
and
, therefore, you must mutliply them, as you can see below:
2. According the exponents propertiess, when you have a multiplication of two powers that has the equal base, you must add the exponents. THerefore, you have the following result:
Answer:
the answer would be d
Step-by-step explanation:
you have to divide first then mulipliy the two numbers
Answer:11 hours
Step-by-step explanation: