Sidney's dog had 2 puppies. at8 weeks old, the puppies weighed 2 kilograms and 1,875 grams. what was the difference in the masses of the puppies?

49xy +34y - 72z. determine the degree of the polynomial

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?