I don’t understand any of these questions can y’all help

2. 20-9=13

3. 17-2(7)=3

4. 5 with the little 2 -4=21

5. (5-3) with the tiny 2 =4

6. 6+6 with the tiny two =144

7. 12+2(12)=36

8. 9(7)-5(7)=28

9. 4×(21-3(5))=24

10. 7(7)-9(5)=4

11. 10 with the tiny 2-9(9)+3=22

12. 3(7)+4(10)÷2=30.5

Step-by-step explanation:

it's just like a regular math problem just replace all the letters with what they equal as a number and then it's a normal problem.

your answer is a

step-by-step explanation:

4*4*4*4=256

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step-by-step explanation: