Balancing Equations. 2+3=4+___

4+5=___+7

3+6=9+___

5+___=8+4

__+2=6+3

5+5=___+6

7+__=4+4

3+9=10+___

___+1=7+0

8+5=___+9

Can someone me with the property questions for 12 13 and 14 plz

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score