Answer:
To calculate the amount of money in Roger's account in June, we need to add the increase of 50% to the initial amount of $40.
Increase = 50% of $40 = 0.5 * $40 = $20
To find the total amount in Roger's account in June, we add the initial amount of $40 to the increase of $20:
Total amount in Roger's account in June = $40 + $20 = $60
Therefore, Roger has $60 in his savings account in June.