Chemical solution c is made by mixing chemical a and chemical b in the ratio of 5 to 3. how many beakers of chemical a and chemical b are needed to make 16 beakers of chemical solution c

See attachment below and find the equivalent of tan(∠qsr)

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Ithink i know it but i want to be sure so can you me out ?