Answer:
90 arrangements
Step-by-step explanation:
Since there are no repititions of letters, there are unique 10 letters in total.
THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:

Now, n = 10 [total] and r is 2, so we have:

So, there can be 90 arrangements
<span>a. 8 b. 20 </span><span> c. 4 d. 16/5 e. 10 f. 5 g. 2 h. 8/3</span>
8.25 tons or 8 1/4
just multiply the two numbers together
Answer: 29 and 24
Step-by-step explanation:
Since one number is 5 more than another
53-5 = 48
Then we divide that by two to get the value of one of the two numbers
48/2= 24
In order to get the number which is 5 more than the other, we add 5
24+5= 29
So the two numbers would be 29 and 24.
Check:
29+24= 53