Question

PLEASE HELP ME!!!!!!! I HAVE EITHER 1 OR 2 ATTEMPTS TO GET IT RIGHT!!

Answer 1

You just have to make equal fractions, so if c = 4 that means
`(a)/(5)` =
`(4)/(7)` so cross multiply to get 7a = 20; divide both sides by 7 to get a = 2.86 and do the same with the other ones

If c = 11 then
`(a)/(5)` =
`(11)/(7)` cross multiply to get 7a = 55; divide both sides by 7 to get a = 7.86 and so on

The answer is true to the other question

Hope this helps :)