Question

Please help me will give medal:)!!!

Answer 1

What do you need to do to isolate z?

Answer 2

IDK

Answer 3

In order to find z, look at 8 and 32. To get 32, you multiply 8 * 4, so just do the same to the numerator.
7 * 4 = 28
so the answer is 28/32

Answer 4

Cross-multiply.

Here's your equation:
\[\frac{ 2 }{ 9 } \times \frac{ 3 }{ 14 }\]
Now divide 9 by 3 and 2 by 14 and this is what you get:
\[\frac{ 1 }{ 3 } \times \frac{ 1 }{ 7 }\]
Now multiply 3 * 7 and the answer is:
\[\frac{ 1 }{ 21 }\]