Step-by-step explanation:
A=a+b/2
2×A=a+b
2A=a+b
2a-a=b
a=b
hope it helps
The answer would be FE...
Answer:
In 1890, America's railroad linked mainly through the north and south rarely in the west if at all.
a) C = 40 + 30t
b) 280 = 40 + 30t
30t = 240
t = 8
The plumber worked 8 hours