Richard gets his hair cut every 3 weeks. his hairdresser charges him $25
each time. a reasonable tip is 10%. richard pays him $28 each time. what
percent, to the nearest whole does richard tip his hairdresser?
a. 3%
b. 9%
c. 10%
d. 12%

D. 12%

Step-by-step explanation:

3/25=x/100

300=25x

x= 12%

answer: i'm great at algebra

~coco

step-by-step explanation:

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