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82.698

Step-by-step explanation:

Hey there!

So the first thing that we want to do is find what 7.4% of 77 is

% = 5.698

then we just add it to 77

77+5.698=82.698

There for 77 with a 7.4% increase is 82.698

hope this helps :)

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