Answer:
The probability of selecting a solid black marbles both times;
P = 9/100
Attached is the completed question;
Step-by-step explanation:
Number of solid black marbles = 3
Total number of marbles = 10
The probability of selecting a solid black marble;
P1 = 3/10
With the assumption that the marbles are replaced before next selection.
The probability of selecting a solid black marbles both times;
P = P1 × P1 = 3/10 × 3/10 = 9/100
P = 9/100
Answer:
375
Step-by-step explanation:
12½[30] → 25⁄2[30]
Multiply 25 by 30 [750] then divide by 2 to get 375.
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Answer is $8 for an children and $15 for adult
1 ticket would be $8

When your raising a negative number by the 4th power the (-) sign will be removed
Answer:
9/2
Step-by-step explanation:
9-3=6 and (1/3+1)=4/3
The answer is 6/(4/3)=9/2