The function j(x)= 39x represents the number of jumping jacks (x) you can do in x minutes . how many jumping jacks can you do in 5 minutes?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy