Final answer:
Ronnie can spend $9,115 in June to maintain the same average monthly expenditure for the second quarter as in the first quarter.
Step-by-step explanation:
To maintain the same average monthly expenditure for the second quarter as in the first quarter, Ronnie needs to spend the same amount each month. To find the total amount, we need to add up the total expenditures for the first three months and subtract it from the total income for the first quarter. Then we can use this total to calculate the remaining amount Ronnie can spend in June. Let's calculate:
Total expenditure for the first quarter: $56.75 + $43.25 + $65.00 = $165.00
Total income for the first quarter: $3,000 + $2,280 + $4,000 = $9,280
Remaining amount for June: $9,280 - $165.00 = $9,115
Therefore, Ronnie can spend $9,115 in June to maintain the same average monthly expenditure for the second quarter as in the first quarter.