Answer:
32
Step-by-step explanation:
She should chose the $9 because it is cheaper ;)
Answer:
6:38am
Step-by-step explanation:
From the question we are told that
Average speed 
Distance traveled 
Generally the velocity across a distance is mathematically given given as 


Therefore
7:20-42 minutes =6:38am
Answer:
729 * 10^-45
Step-by-step explanation:
Here, we want to expand the value based on the exponent
We have the power multiplying every term in the bracket
That would be;
9^3•10^-45
= 729 * 10^-45