Expressions & Equations Review

Expressions & Equations Review

Multiple Choice

 $3^2+12\div3$  

• 13

• 6

• 7

• 14

Multiple Choice

 $4^2+10\div2$  

• 9

• 13

• 9

• 21

Multiple Choice

 $4\left(2^3-1\right)$  

• 20

• 28

• 23

• 11

Multiple Choice

 $5\left(3^3-7\right)$  

• -5

• 10

• 100

• 80

Multiple Choice

 $\left(\frac{1}{3}+\frac{1}{6}\right)\times4$  

• 2

• 4

•  $\frac{8}{9}$  

•  $1\ \frac{1}{2}$  

Multiple Choice

 $\left(\frac{1}{4}+\frac{1}{2}\right)\times8$  

• 6

• 4

•  $2\ \frac{2}{3}$  
  

•  $1\ \frac{1}{2}$  

Multiple Choice

 $6\ +\ 3\ \div\frac{1}{2}\times4$  

• 16

• 18

• 30

• 20

Multiple Choice

 $7\ +\ 2\ \div\frac{1}{4}\times2$  

• 16

• 30

• 11

• 23

Multiple Choice

 $12w\ +\ 4\$  Evaluate for  $w\ =\ \frac{1}{2}$  

• 16

•  $16\ \frac{1}{2}$  

• 28

• 10

Multiple Choice

 $9w\ +\ 5\$  Evaluate for  $w\ =\ \frac{1}{3}$  

• 8

•  $14\ \frac{1}{3}$  

• 14

• 32

Multiple Choice

Simplify $3x\ +\ 4y\ +\ 5x$  

•  $12xy$  

•  $15x\ +\ 4y$  

•  $8x\ +\ 4y$  

•  $60xy$  

Multiple Choice

Simplify $5x\ +\ 6y\ +\ 7x$  

•  $18xy$  

•  $12x\ +\ 6y$  

•  $11x\ +\ 7y$  

•  $210xy$  

Multiple Choice

 $4\left(3x\ +5y\right)$  

Simplify

•  $12x\ +\ 20y$  

•  $12x\ +\ 5y$  

•  $4\left(8xy\right)$  

•  $7x\ +\ 9y$  

Multiple Choice

 $5\left(2x\ +3y\right)$  

Simplify

•  $7x\ +\ 8y$  

•  $10x\ +\ 15y$  

•  $5\left(5xy\right)$  

•  $7x\ +\ 8y$  

Multiple Choice

Solve the equation: $3.5\ =\ x\ -2.4$  

•  $x\ =\ 1.1$  

•  $x\ =\ -1.1$  

•  $x\ =\ 5.9$  

•  $x\ =\ -5.9$  

Multiple Choice

Solve the equation: $4.2\ =\ x\ -3.1$  

•  $x\ =\ 1.1$  

•  $x\ =\ -1.1$  

•  $x\ =\ 7.3$  

•  $x\ =\ -7.3$  

Multiple Choice

For summer vacation, Bob needs bathing suits and flip flops:

bathing suits, b, for $12 each, and flip flops, f, for $8 each.

Write an equation for the total cost, C, of the supplies using the variables b and f.

• $C\ =\ 12b\ +\ 8f$

• $C\ =\ 12f\ +\ 8b$

• $C\ =\ 20bf$

• $C\ =\ 12b\ -\ 8f$

Multiple Choice

Evaluate for b = 3  and f = 2  $C\ =\ 12b\ +\ 8f$  

• C = 205

• C = 25

• C = 52

• 48

Multiple Choice

For winter vacation, Bob needs sweaters and gloves:

sweaters, s, for $20 each, and gloves, g, for $6 each.

Write an equation for the total cost, C, of the supplies using the variables s and g.

•  $C\ =\ 20s\ +\ 6g$ 

•  $C\ =\ 20g\ +\ 6s$ 

•  $C\ =\ 26sg$ 

•  $C\ =\ 20s\ -\ 6g$ 

Multiple Choice

Evaluate for s = 4  and g = 2  $C\ =\ 20s\ +\ 6g$  

• C = 960

• C = 266

• C = 92

• C = 32