Which expression could be used to find the missing value in X Divided by 3/5 = 7/4 THE X IS THE MISSING VALUE!!!

5/3 x 7/4
3/5 x 7/4
5/3 x 4/7
3/5 x 4/7

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Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.