CH 1.4 Real Numbers and Algebraic Expressions

Fill in the Blank

What's the additive inverse (opposite) of 7?

Multiple Choice

What's the multiplicative inverse (reciprocal) of 7?

• -7

• 7

• $$\frac{1}{7}$$  

• $$-\frac{1}{7}$$  

Multiple Choice

Rewriting the expression $$3\cdot\left(8y\right)$$   as $$\left(3y\right)\cdot8$$   uses which property?

• Associative

• Commutative

• Both Associative and Commutative

• Neither

Fill in the Blank

Simplify $$4xy-xy+3-8+2xy$$  

(Do NOT type any spaces)