2 QUESTIONS You don't need to answer both of them, but please include answer + explanation for at least one of them

bh + L(S1 + S2 + h)

Step-by-step explanation:

b stands for the bottom edge of the base triangle

h is the height of the base triangle

L is the length of the prism

S1 and S2 are the two edges of the base triangle

bh is the combined area of the two triangular faces

L(S1 + S2 + h) is the area of the three rectangular side faces

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is