Width of a rectangle with an area of 42 square inches and a length of 16.8 inches

  2.5 inches

Step-by-step explanation:

The area is given by the formula ...

  A = LW

Putting in the given numbers for length (L) and area (A), we can find width (W).

  42 in^2 = (16.8 in)W

  42 in^2/(16.8 in) = W = 2.5 in

The width of the rectangle is 2.5 inches.

5

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b