Real Number System & Algebraic Expressions

Consider the following expression: 7+3x

The number ​ (a)   represents a coefficient and the number​ (b)   represents a constant.

• 3
• 7
• x

Which numbers below represent perfect squares?

• -9

• 0.2

• 1/4

• 8

• 16

If x=-2 and y=5, what is the value of y-x?

Which of the following will always be an irrational number? Select two.

• The product of a rational and an irrational

• The product of two irrationals

• The square root of a perfect square

• The square root of any whole number

• The sum of two irrational numbers

• 20

• 29

Organize these options into the right categories

Groups:

(a) Rational

,

(b) Irrational

If x=-5 and y=3, what is the value of

7-(y+1)-2x ?