5/7 + 8/14

1 2/7
19/14
1 2/14 help, please

Ineed with number 17 i don’t get it at alll

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

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