7. the unit rate is 30 divide 60 by 2 and 90 by 3 to show u r work
8.the unit rate is 1.89 divide 18.90 by 10 and so on
You could do 0.9 1.6 3.5 dont know of thats what you ment but they all have decimals :)
Answer:

Step-by-step explanation:
We are given that

We have to find the value of given expression



LCM(2,3,6)=6




55°
Step-by-step explanation:
110+15+x =180
x = 180 - 125
x = 55°