Find the perimeter and area of each of these rectangles. a) the floor of a room which is 6,5 m long and 5 m wide
b) the floor of a sports hall which is 85 m long and 55 m wide
c) the lid of a CD case which is a square of side length 135 mm
d) a chess board of side length 60 cm

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

1.0

step-by-step explanation:

yes the data was not prsented

step-by-step explanation:

18.8cm hope i at all

step-by-step explanation: