Math 7A - Chapter 1 Language of Algebra

Write an expression to represent the age of a person five years older than you.

• y + 5

• 5 - y

• y ÷ 5

• y - 5

Write an expression

to find the total cost (c):

You are buying 24 cupcakes for your class.

• c ÷ 24

• c + 24

• 24c

• c − 24

Write an expression for:

The number of feet in any given amount of inches.

1 ft = 12 in.

• 12f

• f - 12

• 12 + f

• $\frac{f}{12}$ or f ÷ 12

Evaluate: 25 ÷ 5 + [ 2(7 + 4) - 10]

• 37

• 27

• 17

• 7

Evaluate if a = 6 and b = 5:

 $\frac{2a\ +4}{17-3b}$  

• 15

• 8

• 30

• 2

Evaluate if c = 5 and d = 9:

 $10\left(6c-3d\right)$  

• 30

• 260

• 120

• 570

Name the property:

 $\left(x+3\right)\ +\ y\ =\ x\ +\ \left(3+y\right)$  

• Commutative Property of Addition

• Associative Property of Addition

• Additive Identity

• Multiplicative Property of Zero

Name the property:
 $7x\cdot0=0$  

• Commutative Property of Multiplication

• Associative Property of Multiplication

• Multiplicative Identity

• Multiplicative Property of Zero

• 6 dimes and 2 nickels

• 3 dimes and 7 nickels

• 7 dimes and 3 nickels

• 8 dimes and 4 nickels

Name the point for the

ordered pair (3, 4).

• Point N

• Point K

• Point R

• Point J