幾條f.1既maths唔明'[英文問題]希望大家幫幫手'20分'

Danny has 14 model cars.
(a) As his mother is worried that he will spend too much money on model cars, she propoes the following to Danny :
''The maximum number of model cars that Danny can have is 20.''
Let the total nuber of model cars that Danny can have be x.
(i) Write an inequality to represent this situation.
(ii) Hence find at most how many more model cars he can have.

(b) However, he makes the following counter-proposal:
'' Apart from the condition stated above , I would like the total number of model cars to be greater than 17.''
(i) How many model cars can he have under this situation?
(ii) Hence find at least how many more omdel cars he can have.


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