John's room is shaped like a box. it has a flat ceiling that is a rectangle that is 14 feet long and 9 feet wide and the walls are 7 feet high. it has one door that is 6 feet high and 3 feet wide. it has two windows that are each 5 feet high and 42 inches wide. john wants to paint the walls and ceiling, but not the door or windows. he can paint 100 square feet with a quart of paint and paint costs $3.50 per quart. he has to buy whole quarts and may have some paint left over.

14 x 7 = 98 x 2 = 196

9 x 7 = 63 x 2 = 126

196 + 126 = 322 square feet

door = 6 x 3 = 18 q ft

 window = 5 x 3.5 = 17.5 x 2 = 35 sq ft

322-18-35 = 269 sq ft

269/100 = 2.69 quarts so he needs 3 quarts

3.50 x 3 = $10.50

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

answer: $1794

step-by-step explanation: