i need help i need to find the balance in each compound interest account:

$1400 after 3 years at 5.5%
i got:
B= P (1 + r) t
=1400 (1 + .055)3

I am stuck and don't know how to do this

#2 $1800 after 11 years @ 6.0%

#3 $900 after 10 years @ 4.62%

#4 $2500 after 50 years @ 2.2%

B= P (1 + r)^t

The t is an exponent.

1400 (1 + .055)^3 = $1643.94

This assumes annual compounding. Most accounts compound more frequently

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and louis tomolinson

To find the balance in each compound interest account, you can use the formula for compound interest:

B = P(1 + r/n)^(nt)

Where:
B = Balance
P = Principal amount
r = Annual interest rate (in decimal form)
n = Number of times interest is compounded per year
t = Number of years

Let's calculate the balance for each scenario:

#1:
Principal (P) = $1400
Annual interest rate (r) = 5.5% = 0.055 (in decimal form)
Number of years (t) = 3

Using the formula:
B = 1400(1 + 0.055)^3

To calculate this, first add 1 to the interest rate:
1 + 0.055 = 1.055

Then, take this value to the power of the number of years:
1.055^3 ≈ 1.166745

Finally, multiply the principal amount by the result:
B ≈ 1400 * 1.166745
B ≈ $1633.43

Therefore, the balance in the compound interest account after 3 years at 5.5% would be approximately $1633.43.

Now let's work on the other scenarios.

#2:
Principal (P) = $1800
Annual interest rate (r) = 6.0% = 0.06 (in decimal form)
Number of years (t) = 11

Using the formula:
B = 1800(1 + 0.06)^11

Perform the calculations in a similar way as described for #1.

#3:
Principal (P) = $900
Annual interest rate (r) = 4.62% = 0.0462 (in decimal form)
Number of years (t) = 10

Using the formula:
B = 900(1 + 0.0462)^10

Again, perform the calculations as previously described.

#4:
Principal (P) = $2500
Annual interest rate (r) = 2.2% = 0.022 (in decimal form)
Number of years (t) = 50

Using the formula:
B = 2500(1 + 0.022)^50

Compute the result using the procedure given above.

By using the compound interest formula with the provided values, you'll be able to calculate the balance in each compound interest account.