How many unit fraction cubes fit into the first layer of the rectangular prism?

33 cubes

Step-by-step explanation:

The first layer is 5 1/2 x 3 = 16 1/2

Since each cube we're using to fill it is 1/2 unit long/wide, it's easiest to convert 16 1/2 into halves...16 = 32 halves + 1/2 = 33

rounding to the nearest thousandth would be 452,000

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)