A light year is defined as the distance light travels in one year. One light year is 9.46 × 10^12 kilometers. A galaxy is about 150,000 light years wide. About how
many kilometers wide is the galaxy?
A 1.419 × 10^16
B 1.419 × 10^17
C 1.419 × 10^18
D 1.419 × 10^19

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

the answer is $42.96

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours