Which expression is equivalent to
81
16
2016 | 4
0 168.12
alb91c4
4a166,8

To do roots of numbers with indices, divide the indice by the root. 4th root of a^{8}a

8

is a^{\frac{8}{4}}a

4

8

4th root of b^{12}b

12

is b^{ \frac{12}{4} }b

4

12

4th root of c^{16}c

16

is b^{ \frac{16}{4}}b

4

16

4th root of 81 is 3 4th root of 16 is 2 \frac{3}{2}

2

3

a^{2}a

2

b^{3}b

3

c^{4}c

4

step-by-step explanation:

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.