Set up a proportion.
2/3 = 12/x. Cross multiply the proportion.
2x = 36. Solve for x.
x = 18.
Answer:
42a+36
Step-by-step explanation:
6(7a+6)
Distribute
6*7a + 6*6
42a+36
Step One: Calculate interest.

Step Two: Calculate the amount at the end of the first year.

Step Three: Calculate the amount at the end of the second year. This will be your final answer.
$1357 balance
The answer is 500 seconds it’s 5.33 minutes.