Answer:
5m - 4n
5(5) - 4(3) ( As m= 5 and n= 3)
25 - 12
= 13
Step-by-step explanation:

The answer would be no solution. It comes out to 56=-49
Answer:
1287
Step-by-step explanation:
Is means equals and of means multiply
W = 130% * 990
Change to decimal form
W = 1.30 * 990
W =1287
Answer:
8√3.
Step-by-step explanation:
192 = 2 * 2 * 2 * 2 * 2 * 2 * 3
The square root of the multiple of the 6 2's is 2*2*2 = 8
so √192 = 8√3.