3. Quincy deposits $400 in a new bank account that earns 4% simple interest per year. What
is the total amount in the account after 3 years?

$448

Step-by-step explanation:

We can use the simple interest formula for this:

P = initial balance

r = annual interest rate

t = time

First, change 4% into its decimal form:

4% -> -> 0.04

Now, lets plug in the values:

The total amount in the account after 3 years will be $448

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

2500

step-by-step explanation: