# need algebra help on how to solve a problem

**Question description**

1.) I need help on how to write and solve the following problems (7/10 - 1/5) divide 1/9 =?

2.) Also Evaluate the given expression if y= 2/5 and z = 5/6 for 8y-z =?

3.) 8m/9 divide 22/9 does that = m/6 is that correct?

can anyone please help walk me through these problems please and thank you.

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