Help please and fast :)

Step-by-step explanation:

For A)

1/2 meters and 3/2 meters long

A = l *w

0.5 * 1.5 =  0.75

A is not the correct answer

For B)

2/3 meter wide and 3/2 meters long

A = l*w

2/3 *3/2 = 1

6/6 =1

1 =1

B is the correct answer

For C)

4/5 meter wide and 5/4 meter long

A = l*w

4/5 *5/4 =1

20/20 = 1

1=1

C is the correct answer

For D)

2/3 meter wide and 6/4 meters long

A = l * w

2/3 * 6/4 = 1

2/3 * 3/2 = 1

6/6 = 1

D is the correct answer

the solution is h=10 because you add 9 to each side of the equation.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: