The balance of an investment account is $308 more than the balance 4 years ago. the current balance of the account is $4708. what was the balance 4 years ago?

$4400

Step-by-step explanation:

We are given that the balance of an investment account is $308 more than the balance 4 years ago.

We are given that current balance in the account=$4708

We have to find the value of balance 4 years ago.

Let x be the balance 4 years ago

According to question

Using subtraction property of equality

Hence, 4 years ago the balance in the account =$4400

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.