Avet measured the mass of two birds. the mass of the robin was 76.64 grams. the mass of the blue jay was 81.54 grams. estimate the difference in the masses of the birds.

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

When you answer this can you explain

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.