Answer:
<h2>(f + g)(x) = x² + 3x - 5</h2>
Step-by-step explanation:

Well you add the total of championships. 15+7+7+6+4+2=41
The ratio is 6:41
This means that Australia won 6 of the 41 championships.
2/5 ≥ x - (4/5). add 4/5 to each side
6/5 ≥ x
EXPLANATION:
-To formulate an equation, you must first know what data the exercise gives us to locate them correctly.
data:
-6 that must be added to a number.
-four times a number that is equal to 4x
-a result that is equal to 50
Now with these data we formulate the equation:

if we solve the equation we have: