Answer:
8
Step-by-step explanation:
x+x+7=23
2x=16
x=8
The second day, she sold more.
We know 7/9 is about 0.777777777778
And 0.78 < 0.85
So the second day she sold more.
Answer:
G(2b) = 10b + 3
Step-by-step explanation:
To find G(2b), simply plug in 2b wherever there is an x in G(x).
G(x) = 5x + 3
G(2b) = 5(2b) + 3
G(2b) = 10b + 3