The sum of age of Akins and Dop is 35 years. The sum of twice Akins age and 3 times Dop age is 89 years. Find their percentages ages.​

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

The reaction q+r2=r2q is found to be first order in r2 and

Classify this reaction: 2al+n2-> aln.