Question

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Answer 1

Step-by-step explanation:

1. 5^7/5^5 = 5^(7-5) = 5^2 = 25
2. 3√-1 = -1
3. 3^4x = 81 ; 3^4x = 3^4 ; 4x = 4 ;x=1
4. d)4
5. a)2.4

Answer 2

Answer:

1] c 25

2] a –1

3] a x=1

4] b 250

5] d 4

6] a 2.4