Abox contains 14 scarves in unique colors. if 4 scarves are picked randomly from the different combinations are possible if the order doesn't matter.

363242880

Step-by-step explanation:

We know that the of to calculate the number of combinations, we use the formula :-

, where n : the total number of items

r: the number of items being chosen at a time.

Given: The total number of scarves contained in a box= 14

The number of scarves picked = 4

The number of different combinations is given by :-

Hence,  If 4 scarves are picked randomly from the box, 363242880 different combinations are possible if the order doesn't matter.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk