4. An investment of $600 is made into on account that earns 6% annual simple interest
for 15 years. Assuming no other deposits or
withdrawals are made, find the following
Intrest-
Total Value-

If a =6, what is the value of 2a(3b + 5c)?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Jada has a monthly budget for her cell phone bill. last month she spent 120% of her budget, and the bill was 60$. what is jada’s monthly budget