How to solve 2+1/6a=-4. what does a equal?

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

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish