The length and width of a rectangular swimming pool are 4x2 + x2- 4. What is the perimeter of the pool?

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

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.

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red