exam Maths Puzzle Numerical Ability

We are in interval notation and I am havibg a hard time with. Could you please help?

We are to use interval notaion for the solution sets.

2<(5-2x)<7

Here is another one 2x-3<5 or 3x-2>13

Thanks

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exam Other Question

one number is 12 more then another, the sum of the smaller number and twice the larger number is 39 find the large number x= the first number and y= the second number so is it 12 + x = y or 2x +y = 32 jennifer has 8 blue marbles, 12 orange marbles, & 10 red marbles
What is the probability of picking an orange marble.
Predict the number of times out of 120 Jennifer will pick an orange marble.
Please help to explain so we can show the work.