Which expressions are equivalent to the one below check all that apply 3^4•3^x

3^4+x

Step-by-step explanation:

3rd law of exponents. You can add the two exponents if they have a common base and are being multiplied :)

ex :

This is basically saying

(note for x = 2)

3^4 * 3 ^2

(3 * 3 * 3 * 3)(3 * 3)

This is also 3^6

:)

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.