SOLUTION:
Case: Inequality expressions
Method:
Initial height of tree = 55cm
Rate of growh = 2cm per month for x months i.e. 2x
Maximum height = y cm
Inequality expression:
With 'at most' meaning 'less than or equal to'
[tex]55+2x\leq y[/tex]Final answer:
[tex]55+2x\leq y[/tex]