HDubz Tuesday Night

Here is your hdubz for Wednesday's classes:
 
EXTENDED 1. H & F Periods:
1. Isolate and graph the inequality:
5x + 2y < 8

2. Mr. Federico travels from Lugano to Luzern in 2 hours and 13 minutes at an average pace of 95 kilometers per hour. What was the total distance between Lugano and Luzern?

3. Davey B. has 2,500 chf after he invested 2,200 in a simple interest account for three years. What was the interest rate he earned?
4. Simplify: ( 6x² – 9y )²  
5. Solve for x:   3x² – 21x = 0

CORE 1. E PERIOD:
Graph the following:
y = 2/3x + 1
Solve for x in the following:
3x - 1 = 7
3x - 2 = -2x + 5
Solve and graph on a number line:
-2x - 5 < 7

EXTENDED 1. D PERIOD:
1. Solve using order of operations:   
    4² – ( -3 + 8 ) – 4 x 7

2. Simplify completely: 
    5x³ + 7x² – 18x³ + 12x² – 19                                                                 

3. Simplify completely:      
    a^-5 · a^-3 · a²

^{4. Solve for x and y:}      
   2x + 3y = 1

   4x – 2y = 10