Answer:
These are both 20 so that means that this is proportional, yes.
Step-by-step explanation:
Hi.
To figure this out we can do something called cross multiplying to find a cross product. If we do this and our two answers are equal then it is indeed a proportion.
Here is how we do this.

So basically what we are doing is multiplying across in a diagonal direction.
Diagonal meaning like a slash / .
So in this case we would multiply the 4 and the 5 , since they're diagonal from each other.
Do the same for the 2 and the 10.
So we have to multiply :
4 x 5
2 x 10
=
20
These are both 20 so that means that this is proportional, yes.
Hope this helps.
If you have any questions or concerns feel free to message me.
Answer:
or 
Step-by-step explanation:
Given







Required
Determine the probability of selecting a brown ball
This is calculated as thus:

Substitute values for Brown and Total

The answer can be in fraction or solved further as;

Not a 100% positive this is the answer but i think it is 2.5
got this by dividing 30 by 12 and got 2.5
Answer:
The answer is $5.99
Step-by-step explanation:
$23.96 divided by 4 is $5.99
24 years:
3237*e^(.061*24) = 13994
39 years:
3237*e^(.061*39) = 34940