Locate fire stations so that each district has a fire station in it or next to it, formulate this problem to minimize the number of fire stations needed.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Given: transversal t passed through parrallel lines r and s.prove: < 3 = < 6 < 4 = < 8what is the next step in the proof? choose the most logicsl approach

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?