Algebra

The most proper way to write

  $5\times y\times x$ 

is: 

•  $5\times x\times y$  

•  $5yx$  

•  $5xy$  

•  $x^5y$  

The most proper way to write

 $b\times3\times a\times2$  

is: 

•  $23ab$  

•  $6\times b\times a$  

•  $6\times a\times b$  

•  $6ab$  

Taym has 3 boxes of marbles and 2 marbles in his hand.

Which of the following is a good expression for the number of marbles Taym has?

• $3+2$

• $x^3+2$

• $2x+3$

• $3x+2$

Layan eats 3 meals a day. If she is going for an $n$  days tour, how many meals would she need? 

•  $3n$  

•  $n^3$  

•  $3+n$  

•  $n+3$  

The most proper way to write

 $2\times x\times x\times x$ 

is: 

 

•  $3x^2$  

•  $6x$  

•  $2x^3$  

•  $2xxx$  

Sama is 3 years younger than her brother. If her brother is

 $m$  years old,

 which of the following expression represents her age?

•  $3-m$  

•  $3m$  

•  $m+3$  

•  $m-3$  

Sama is 3 years younger than her brother. If her brother is

 $m$   years old,

 which of the following expression represents the SUM of their ages?

•  $m+m+3$  

•  $2m+3$  

•  $2m-3$  

•  $m-3$  

Which of the following pairs is NOT like terms?

• $-3x\ ,\ \ x$

• $2ab\ ,\ 3ba$

• $xy\ ,\ \ -2y$

• $15\ ,\ -77$

Simplify the following expression

 $4x-3y+9-x$  

•  $7x-12y$  

•  $3x-3y-9$  

•  $5x+3y+9$  

•  $3x-3y+9$  

Simplify the following expression 

 $2a+5b+2ab+3ba+7$  

•  $2a+5b+5ab+7$  

•  $4a+7b+3ba+7$  

•  $2a+5b+2ab+3ba+7$  

•  $7a+10b+7$