1. Section 1.2 – Algebraic Expressions
Evaluate each expression for the given variable values:
A) 3x + 2y – 7x + 4y; x = -2, y = 5
B) 3(a + b) – 2(3a + 4b); a = 1, b = -8
C) -r2 + 5r – 4; r = -3

2. The expression 16t2 models falling distance (in feet)
The expression 16t2 models falling distance (in feet). Find the distance an object drops in: sec, 1 sec, 3 sec
The expression 2000(1.3)t represents the value of an investment. Find the value after: 2 years, 15 years, 50 years

3. Simplify by combining like terms:
A) x(x – y) + 3y(x -2y)
B) a2 + 3a2 + 2a
C) 3(2x – 1) – 8

4. Find the perimeter: