Answer:
He earned in this month $1810
Explanation:
∵ John worked in a furniture store for a salary of $850 a month
∴ His fixed salary = $850
∵ He takes a commission of 6% on sales over $20,000
∴ His commission = 6% on sales over $20,000
→ Change it to decimal by divide it by 100
∴ His commission =
= 0.06 on sales over $2000
∵ In one month he sold $36,000 worth of furniture
∴ He will take a commission on the value that over $20,000
∵ The amount of selling over $20,000 = 36,000 - 20,000
∴ The amount of selling over $20,000 = $16,000
→ Multiply it by 0.06 to find his commission
∵ His commission = 0.06 × 16,000
∴ His commission = $960
→ Now let us find his total earn
∵ His total earn = his salary + his commission
∴ His total earn = 850 + 960 = 1810
∴ He earned in this month $1810