Some money is deposited in an investment account that earns 4,9% interest per year, compounded continuously. How long does it take to triple the amount in the account?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?