I think it is function also.
5 x 3 = 15
30 x 3 = 90
15+90=105
so that person paid $105 for that day
Answer: He earned 0.831% interest in total.
Step-by-step explanation:
Given: Shawn earned $2.77 per day for three days as interest on his $1,000.00 investment.
Interest per day = $2.77
Interest in 3 days = 3 x ($2.77)
= $8.31
Invested amount= $1000
Required percentage of earnings = 

Hence, he earned 0.831% interest in total.
Answer: 
Step-by-step explanation:
1: 3, 2: 5, 4:14 ther u go