PLEASE I AM REALLY FONFUSED

Hi, there your answer

Number 15: 16

Number16: 176

Number 17: 0

Number 18: 12

Number 19: -3

Number 20:-52

Number 21:{−9}

Number 22: {13}

Number 23:{1}

Number 24:{−90}

Number 25:{−2}

Number 26:{−2}

Number 27:{56}    

Number 28:{9}

Number 29:{15}  

Number 30: {−10}

Step-by-step explanation:

The answer are in bold I don't know if you are looking for the work or the answer???

Hope this helps :)

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is