In the diagram below, \overline{AB} \parallel \overline{DF}, AB ∥ DF , \text{m}\angle DCE = 101^{\circ}m∠DCE=101 ∘ and \text{m}\angle CEF = 147^{\circ}.m∠CEF=147 ∘ . Find \text{m}\angle B. m∠B After solved i give brainliest

Evaluate the following expression 1/3^2

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.

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)