Answer:
D
Step-by-step explanation:
a - 3 = 7 ( add 3 to both sides )
a - 3 + 3 = 7 + 3 , that is
a = 10
Set up multiplication/division of proportions to cancel out units that you don't want and to introduce units that you do want in your final solution...
2678cm(in/2.54cm)(ft/12in)=2678/30.48 ft≈87.86 ft (to nearest hundredth)
A+b+c=-44.84
a=26.6
b=c
26.6+b+b=-44.84
2b=-44.84-26.6
b=-35.72
So, a=26.6, b=-35.72, c=-35.72
Answer:

Step-by-step explanation:







Answer:
- 2.3 - 6.3
Step-by-step explanation: