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1.  and

2. Distance

3. 1-(-2.5)=3.5

4. 3.5-1=2.5

5. {drawing}

6.15.8-9.9=5.9

7. 17+3y=5y+9; y=2; MP=17+3y=17+3(2)=23

8. (110+23)/2=66.5

9. 

10. 2y=8y-3; 6y=3; y=2; DE=6; EF=13; DF=19

11. (2/3)-(-5.25))

12. -2-(-5.25)=3+(1/4)

13. {drawing}

14. 17.1-8=9.1

15. 2.5x+x=5x-3; 1.5x=3; x=2; MN=5

16. (50-24)/2=13; 13+(24-9)=28yd

17. 

18. 3y=42/2;y=7; QR=21

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Step-by-step explanation:

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.

the correct answer is 1: 2

step-by-step explanation:

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