- 7х +4y = 24
Чx - чу = 0

(-8,-8) or x = -8 & y = -8

Step-by-step explanation:

add both equations to get:

-3x=24

x = -8

now substitue x = -8 into the fisrt equation:

-7(-8) + 4y = 24

56 + 4y = 24

4y = 24 - 56

4y = -32

y = -8

now the answer would be in (x,y) form:

(-8,-8)

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation: