Answer:
-320000
Step-by-step explanation:
Given
Lost Land = 80,000 acres yearly
Duration 4 years
Required
The total change
Represent the total change with y;
y is calculated as thus;



<em>Hence, a total of 320000 acres were lost during the period</em>
Answer:
-8 + 3.2z
Step-by-step explanation:
- when there is a "+" in front of an expression in parentheses, the expression remains the same
- -2 + 6.45z - 6 - 3.25z
- calculate the difference
-8 + 6.45z - 3.25z
collect like terms
-8 + 3.2z
Answer:6 weeks
Step-by-step explanation: 5, 10, 20, 40, 80, 160
Step-by-step explanation:
Let original price be x
Price after 40% discount is $201
Therefore
x × 40% = $201
x = 201 ÷ (40/100)
x = 502.5
Therefore, the original price is $502.5
Hope it helps :)
The answer is 
Steps: (<em>in the attachment</em>)↓↓↓↓↓
<em>Hope this helps!!</em>