In order to solve these sort of problems, we can set up 2 equations from the 2 statements.

We can subsitute the value of f, our first equation, into the second equation and solve like this:

Then we put the the son's age, 20, back into one of our equations and solve for the other value.

Thus, the father is 45 years old and the son is 20 years old.
Answer:
miles
Step-by-step explanation:
Use the area formula, A = lw, where l is the length and w is the width.
Plug in the area and length into the formula, and solve for w:
A = lw
37 = 28w
37/28 = w
So, as a fraction, the width of the garden is
miles
Answer:
(4,4), (10,4), (10,10), (4,10)
Step-by-step explanation:
(2,2) x2 -> (4,4)
(5,2) x2 -> (10,4)
(5,5) x2 -> (10,10)
(2,5) x2 -> (4,10)
Hope that helps!
Answer:
Step-by-step explanation:
There were 9 other people there. First you would subtract how much marcus paid from the total (134.03-20.45=113.58). After that you just divide the remaining cost with 12.62 (113.58/12.62=9)