Answer:
Probability that first shirt is white and second shirt is gray if first shirt selected is set aside = 
Step-by-step explanation:
Given that
3 white, 2 blue and 5 gray shirts are there.
To find:
Probability that first shirt is white and second shirt is gray if first shirt selected is set aside = ?
Solution:
Here, total number of shirts = 3+2+5 = 10
First of all, let us learn about the formula of an event E:



Now, this shirt is set aside.
So, total number of shirts left are 9 now.

So, the answer is:
Probability that first shirt is white and second shirt is gray if first shirt selected is set aside = 
Answer:
The total price that he has to pay is $21.8.
Step-by-step explanation:
Mr. O'Donnell goes to the store to buy a shirt. The shirt is $20, but he also has to pay a 9% tax.
First you convert the sales tax percentage to its decimal form: in this case 9% becomes 0.09.
To calculate the cost of the tax, the following multiplication must be performed:
cost of product or service* sales tax (in decimal form) = total sales tax
In this case:
$20*0.09= $1.8
Finally, you must add the value of the total sales tax to the cost of the product or service to obtain the total cost. In this case:
$20 + $1.8= $21.8
So, <u><em>the total price that he has to pay is $21.8.</em></u>
I need help on this one tooo
Answer:
21 letters.
Step-by-step explanation:
So, what you need to find here is how many letters precede the letter V. You could count the letters, but since V is near to the end of the alphabet, faster way would be to count the letters from behind. We know that the ending streak of the alphabet is ...v, w, x, y, z, and we also know that the english alphabet has 26 letters. So if we count from behind we find that V is fifth letter from behind ( z is 26th, y is 25th, x is 24th, w is 23rd and v is 22nd). Finally, since V is 22nd letter, that means that it is preceded by 21 letter.
Answer:
Step-by-step explanation:
I = {a,d,f}
H = {bcc,g}
Intersection of I & H contains elements present in both I and H.
Since there are no common elements, the intersection is a null set, or
I intersect H = { }
The union of I and H contains elements present in either I or H, without repetitions (order is not important in the roster form of set notation)
I union H = {a,d,f,bcc,g}