Final answer:
To find Mr. Hollins' overall budget, the $800 he gives away, which represents 16% of his budget, is divided by 0.16 to find the whole, totaling $5,000.
Step-by-step explanation:
Mr. Hollins gives away $800 each month which represents 16% of his overall budget. To find the total budget, we set up a proportion where 16% (or 0.16 when converted to decimal form) is to the total budget (which we'll call 'B') as $800 is to 100% (the whole budget). This can be expressed in equation form as:
0.16 × B = $800
To solve for 'B', we divide both sides of the equation by 0.16:
B = $800 ÷ 0.16
B = $5,000
Therefore, Mr. Hollins' overall budget is $5,000, which makes the answer (a) $5,000.