Answer:

Step-by-step explanation:
Hello, please consider the following.

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Remember property of exponents

add exponents of same base
ok so
50,000 is 5 times 10^4
so
50000 times 10^15=
5 times 10^4 times 10^15=
5 times

=
5 times 10^19
Answer:
Thx for the points
Step-by-step explanation:
Answer:
it would take seven and a half hours
Step-by-step explanation:
450 ÷60 =7.5
Answer:
A= -1,4 B=2,3 C=3,0 D=-1,-1
Step-by-step explanation:
idk what your looking for but I hope this helps