Answer:
y = 156 when x = 12
Explanation:
<em>y</em> varies directly with <em>x</em>: y = kx
Step 1: Plug in variables
65 = 5k
Step 2: Solve for <em>k</em>
<em>k</em> = 13
Step 3: Plug in other variables (new)
y = 13(12)
y = 156
Human activities that contribute to desertification include the expansion and intensive use of agricultural lands, poor irrigation practices, deforestation, and overgrazing.
Effective decision-making means comparing the additional
costs of alternatives with the marginal benefits.
To add, <span>a </span>marginal benefit<span> is the additional satisfaction or utility that a
person receives from consuming an additional unit of a good or service.</span> It
is also the topmost amount he is willing to pay to consume that additional
unit of a good or service.