Mr. lee can paint 20 chairs in t hours. he uses 3 liters of paint for every 12 chairs that he painted.
a.) find in terms of t, the number of chairs that he can paint in 3 hours
b.) find, in terms of t, the time take by mr. lee to paint seven chairs
c.) if t= 4, find the amount of paint mr. lee has used after painting for 4 hours.

A)

B)

C) 5 liters.

Step-by-step explanation:

Given,

The number of chairs painted in t hours = 20,

So, the number of chairs will be painted in 1 hour = ,

A)

The number of chairs will be painted in 3 hours = 3 × chairs painted in 1 hour

,

B) The number of chairs will be painted in 7 hours = 7 × chairs painted in 1 hour

,

C) If t = 4 hours,

The number of chairs painted in 1 hour = = 5,

So, the number of chairs will be painted in 4 hours = 4 × chairs painted in 1 hour

= 20,

Now, paint required for 12 chairs = 3 liters,

So, the paint required for 1 chair = = liters,

Hence, the paint required for 20 chairs = 20 × paint required for 1 chair

= 5 liters.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

probably .5

i can on others if necessary.