Answer:
f(1)=2; f(n)=f(n-1)+2n; for n >2
Step-by-step explanation:
its 244 cm
x= 7, the number is 7
4x-9= 19
4x=28
x=7
It is (3,0)
0.54kilometres
a)actual distance =2.7*20000
=54000cm
=0.54kilometres