Answer:
ddd
Step-by-step explanation:
7) 52h because that's how you'd find the distance traveled if there was a number instead of a variable.(d=st)
8)525+3w because you have to add his original total to the amount of cds he will get and if he gets 3 every week that's 3w and then you add them to get the new total.
Answer:
24
Step-by-step explanation:
there are 6 seats and 3 boys, 3 girls.
First seat can be given to either boy or a girl.
So there are two ways.
If a boy is selected say, then he has to occupy 3rd and 5th only.
There are 2 ways
Now available positions are 2nd, 4th and 6th, in this girls can be arranged in 3! ways = 6
So total number of ways =

Answer:
72
Step-by-step explanation:
Multiply 8 and <em>n </em>to get 8n
Multiply 3 and 192 to get 576
Write them equal to each other 
To isolate the variable divide by 8 on both sides

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