The mass of planet mercury is 3.3x10^23 kilograms the mass of planet jupiter is 5.8 x 10^3 times the mass of planet mercury. planet jupiter is 3.2×10^2 times the mass of planet earth.

1. using scientific notation what is the mass of planet jupiter?
2. using scientific notation what is the mass of planet earth?

1. Let J be the mass of Jupiter and this may be expressed as,
               J = (5.8 x 10^3)(3.3 x 10^23)
The answer to the operation above is 1.914 x 10^27. In correct scientific notation, the answer would be 1.91 x 10^27 kg. 
2. The same as what had been done in the previous number, let E be the mass of Earth. 
                 1.91 x 10^27 = (3.2 x 10^2) x E
The value of E is equal to 5.97 x 10^24. In correct scientific notation, the answer would be 6.0 x 10^24 kg. 

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8