He gave away 9 (20 x (3/7) =9) so 21-9=12
Answer:
x = 11
Step-by-step explanation:
From the diagram, we find,
(2x - 16) + (x - 8) = 9
=> 2x - 16 + x - 8 = 9
=> 2x + x - 16 - 8 = 9
=> 3x - 24 = 9
=> 3x = 9 + 24
=> 3x = 33
=> x = 33/3
=> x = 11
Area = (14 x 20) - ( 5 x 9)
Area = 280 - 45
Area = 235 square cm
252, 210 divided by 5 = 42, 42 x 5 = 210 + 42= 252
Answer: 1=1 question 2 = 1 again 5-6 is the next and 4 3-10 5-6 next answer2-7 3-8 5-4 -22--9 2-29 are all the answers
Step-by-step explanation: