exam Maths Puzzle Numerical Ability

Useing the PEMEDS expesssion, (Please, excuse, my dear, aunt sally)

Simplify

1. 2+3*5^2-7

2. 6+3[(12/4)+5]

3. (4/2)+4(5-2)^2

4. -8-81/9*2^2+7

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exam Other Question

I would really appreciate it if you could help me out with this problem.

{{{ log( 7, (3x+4)) }}} = {{{ log( 7, (2+2)) }}}
7 3/5
- 4 5/6
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