1. Warm-up December 5, 2016
On a map with a scale of one inch equals 20 miles, 2 cities are 6.5 inches apart. How many miles are the cities from each other?
Harold walks ½ mile in 1/5 hour. What is his unit rate of speed?
One 20 pound bag of fertilizer will cover 50 sq. ft. of lawn. How many bags are needed for a 2750 sq. foot lawn?

2. PERCENT CHANGE Formula: (End – Beginning )/ Beginning
(End minus Beginning) divided by Beginning
Then change to a %
+ = increase
- = decrease
From 25 to 75
From 50 to 25

3. Computer: $500; 30% markup Watch: $25.00; 50% markup
Find the selling price for each item given the cost and the percent of markup or markdown.
Computer: $500; 30% markup
Watch: $25.00; 50% markup
Ipad: $499.00; 20% markdown

4. SIMPLE AND COMPOUND INTEREST
SIMPLE: $ * I * # of years
Dollar amount times the interest rate (as a decimal) times the number of years

5. Find the simple interest to the nearest cent.
$720 at 8% for 5 years
$385 at 6% for 3 years
$4250 at 9.25% for 10 years