Praying mantis is an interesting insect that can rotate its head 180 degrees supposed to pray mantis at the right is 10.5 cm long what mixed number represents this length

Solve the inequality. write the inequality in interval notation. 9(t-2)> 3(t-7)

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.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).