Brad wants to open a new savings account. he finds one that returns 3% on his investment each year.

question 1
assign a variable to each of the following pieces of information

final balance
initial investment
return rate

Step-by-step explanation:

Return rate, r = 3% = 0.03

x = initial investment

b = final balance

After 1 year, the balance i

b = initial investment + interest

b = x + r*x = (1 + r)*x

Because r = 0.03,

b = 1.03x   (after 1 year)

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.