Any help would be geeat

90 feet

Step-by-step explanation:

==>Given:

Rectangular room measuring 21 feet by 23 feet

==>Required:

Perimeter of the room = the length of all sides of the room

==>Solution:

Using the formula P = 2L + 2W, we can find the perimeter of the rectangular room assuming that length big the room (L) = 23 ft, while the width (W) = 22 ft.

Therefore,

P = 2(23) + 2(22)

P = 46 + 44

P = 90 ft

Perimeter of the room = 90 feet

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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