Glenn's house is at sea level. In the morning, he walks downhill to visit a friend, whose house is at an elevation that is 11 feet below sea level. At the end of the day, Glenn walks past his house to the hill top to watch the sunset. If the hill top is 25 feet above sea level, what is the change in elevation between the friends house and the hill top

11

Step-by-step explanation: just do 25 - 11

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.