2000 pounds in a ton how can you write 2000 with an exponent

One way you could write it is in scientific notation, which is 10 x 2 to the 3rd power.

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- Hershey

Ithink it is d because if p=s1t-s2t then you just need to put it together backwards. and because it is a s1t and s2t are both multiples ,and you are trying to find what t is you will need to put t as the total and then divide p by s1 and s2. which this eliminates answers a and b, this will leave you c and d. so then compare both answers c and d, and since you are writing the equation backwards that will leave you only one answer which is d. so i believe that the correct answer is d.