Answer:
18 cm tall
Step-by-step explanation:
we start with 10
then each month we add 1 over 8 months
so 10+8=18
113.1 m
(a-4)(a-5)=a^2-9a+20
(a-10)(a-2)=a^2-12a+20
(a-4)(a+5)=a^2+a-20
(a-10)(a+2)=a^2-8a-20