Caroline has 10 marbles. one half of them are blue. how many of caroline marbles are blue?

What is the value of x in the this question ?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

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