Add the following.
13.8 +2.49 + 0.0475

(Type a whole number or a decimal.)

16.3375

Step-by-step explanation:

align up the decimals and go down the rows to add each number together.

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)