Answer:
"Making a Budget" has half a person, which represents half of 50, which is 25. "Good Spending Habits" have a whole extra half which would be 25 more, because "Making a Budget" has 175, and "Good Spending Habits" has 200. if you subtract that, you get 25 more people at "Good Spending Habits", then "Making a Budget", therefore, its true.
Also i already had this written up but i copied it so i can see you comment. hope this helps!
You determine it by finding it
50•2=100
Then 40•2=80
Than add 100+80=
180! Please Thank me!
1.) a>10
2.) a<3.5
How I got it: 1.) Subtract 3 from both sides, leaving -2a<10.
2.) Divide by -2 from both sides, remember to flip the inequality sign when dealing with negatives. This leaves you with a>10.
For number 2.) I divided both sides by 5, leaving a<3.5, though this answer may be wrong.
What multiplies to 25 and adds to -10
-5 and -5
(x-5)(x-5)
(x-5)²
