I believe the answer are as follows: 1. A 2. B 3. A 4. D 5. B and 6. B
The equation looks like this:
26=x*3.5+8.50
where x is the number of pen you bought.
We solve it like this:
first, we subtract 8.50 from both sides:
17.50 =3.5*x
now we divide both sides by 3.5:
5=x
so you purchased 5 pens.
139 is suppose to be 140 and 18 is suppose to be 20, 140 x 20 = 2800
Home this works
The slope of f is 10 because as x increases by 1, f(x) increases by 10.The slope of g is lesser at 5, because every time x increases it only increases by 5. By plugging in 1 and 2 to g(x), we can see that g(2)=11, which is 5 more than g(1)=6.
It is called Ecological Succesion hope that helped:)