Answer:
Step-by-step explanation:
Multiply 18hours by 60 seconds, the answer is 2880 seconds.
The answer would be twenty five because

equals

leaving you with x = 5 at a minimum. So 5x: 5 x 5 = 25
Hope this helps! :)
B is correct ..............
Answer:
a = -4.
Step-by-step explanation:
25(√5)^a * (√5) ^3 = 5√5
25*5^a/2 * 5^3/2 = 5*5^1/2
25*5^a/2 = 5*5^1/2 / 5^3/2
25*5^a/2 = 5^1 *5^1/2 / 5^3/2
25*5^a/2 = 5^3/2 / 5^3/2 = 1
5^a/2 = 1/25 = 5^-2
The bases are equal, so
a/2 = -2
a = -4.