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bobbiemartin543
3. Exponents 4. Parenthesis
6. D or 11
7. F or 10
8. A or 9
9. B or 12
10.C or 16 
11.a---2×13+3
b---Sam payed $29
12. 3×3+7=16
13. 28÷7-1=3
terri2018
3. addition
4. parentheses
6. 11 or D
7. 10 or F
8. 9 or A
9. 12 or B
10. 16 or C
11. a. (13+3)(13+3) b. $32
12. 16=y+x 16= 7+9 or 16= 8*2
I apologize but I do not know 13