Answer:
oh my- this actually made me happy-
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let
x -----> the number of annual visitors pass sold
we know that
To find out the number of annual visitor passes sold, divide the total amount raised by the cost of a pass.
so
The linear equation that represent this problem is

Solve for x
Divide by 12.50 both sides

Answer:
18/10 or 1.8
Step-by-step explanation:
Okay so the two equations are (b-book d-dvd)
d-4=b
and 3d+b=28
so to solve this if we know that a dvd costs £4 more than a book and we have 3 of them then if we take 3 lots of 4 away from the 28 then we will have an amount equal to 4 books
so 28-12=14
14/4= £3.50
if 1 book is £3.50 then a dvd is £7.50 as it is £4 more