<u>Answer:</u>
Lamar will charge
to the comic dealer for a comic book.
<u>Solution:</u>
It is given that lamar purchases a comic book for
. He then marks up the price of a comic book by
which means he increases the price of the book by
and then sells it to the comic dealer.
We have to find out how much will he charge the comic book dealer.
New price of the book after lamar marks up the price is given by
New price 
=

Thus, lamar will charge
to the comic dealer for a comic book.
Answer:
I am pretty sure the answer is 23
Step-by-step explanation:
The answer is 23 because if you multiply 23 by 10 you get 230 which is the same if you divided 230 by 10 and you get 23.
Answer:
9cm
Explicación:
El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

Donde c es la hipotenusa y a y b son los catetos.
Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

Finalmente , debemos resolver la ecuación para b, así que b es igual a :

Por lo tanto, la longitud del otro cateto es 9 cm
Answer:
12x - 2
Step-by-step explanation:
Step 1: Write expression
4(3x + 2) - 6
Step 2: Distribute 4
12x + 8 - 6
Step 3: Combine like terms
12x - 2
Answer:
Verified
Step-by-step explanation:
Let the diagonal matrix D with size 2x2 be in the form of
![\left[\begin{array}{cc}a&0\\0&d\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Da%260%5C%5C0%26d%5Cend%7Barray%7D%5Cright%5D)
Then the determinant of matrix D would be
det(D) = a*d - 0*0 = ad
This is the product of the matrix's diagonal numbers
So the theorem is true for 2x2 matrices