Explain how to use estimation to help find the product of two decimals. Give an example with both estimated and actual answers. Is my question

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

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

Which of the following best describes the figure?