**Problem : ** Identify the variable(s) in the following expressions:

a)
6*g* + 12

b)
18*y*

c)
+11 - 16 + (5—2)

d)
13 + *w* - *j*

e)
2*sf*

f)
16*f* (*g* + 1)^{2} + *h*

b)

c)

d)

e)

f)

**Problem : ** Identify the variable(s) in the following equations:

a)
5*r* + 6 = 11

b)
= 7

c)
116♣ +423♥ = 209

d)
3·(*d* + 1) - 4·(*p* - 2) = 100

e)
14*u* = 28*v* + 7

f)
12 = 5*r* - 3

b)

c) ♣ , ♥

d)

e)

f)

**Problem : ** Are the following expressions or equations?

a)
34*x* + 6 = 19

b)
*r* + 2*y*

c)
*x*
^{3} + *y*
^{4} - 6

d)
13*p* = 106*q*

e)
3 + 2

f)
213 - 13 = 200

g)
16*x*

b) Expression

c) Expression

d) Equation

e) Expression

f) Equation

g) Expression

**Problem : ** Translate the following word statement into an algebraic expression or equation:

"Twice the number of cookies Katie bakes plus the number of cookies Prisca bakes minus 6 cookies"

**Problem : ** Translate the following word statement into an algebraic expression or equation:

"If Rob was half a foot taller, he would be six and one-quarter feet tall."

**Problem : ** Translate the following word statement into an algebraic expression or equation:

"If Ron had scored 15 more points, he would have scored twice as many points as Shawn."

**Problem : ** Translate the following word statement into an algebraic expression or equation:

"John's age divided by 3 is equal to John's age minus 14."