(01.07 mc)
distances in space are measured in light-years. the distance from earth to a star is 4.1 × 1013 kilometers. what is the distance, in light-years, from earth to the star (1 light-year = 9.46 × 1012 kilometers)?
0.23 light-year
2.36 light-years
4.33 light-years
5.36 light-years

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Add the fractions and simplify 1/2+ 1/3

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?