In 2005, the US Mint in Denver produced 4.04 × 108 Oregon State quarters. The US
Mint in Philadelphia produced 7.12 × 107
Oregon State quarters. Considering the
other two US Mint locations did not
produce any quarters, how many Oregon
State Quarters were minted in 2005?
Express your answer in scientific notation.

step-by-step explanation:

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)