Nancy had $2,848.52 in a savings account with simple interest. she had opened the account with $2,006 exactly 3 years earlier. what was the interest rate?

  14%

Step-by-step explanation:

A = P(1 +rt) . . . . . . . . . . . . . . . . . . formula for the balance for simple interest

2848.52 = 2006(1 +3r) . . . . . . . filling in the given numbers

1.42 = 1 +3r . . . . . . . . . . . . . . . . . .divide by 2006

0.42 = 3r . . . . . . . . . . subtract 1

0.14 = r = 14%

Nancy's account paid interest at 14% per year.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)