HELP ME FOR POINTS AND BRAINETEST

Answer:
71.8 = 7 x 10 + 1 x 1 + 8 x 0.1
7.018 = 7 x 1 + 1 x 0.01 + 8 x 0.001
0.718 = 7 x 0.1 + 1 x 0.01 + 8 x 0.001
Step-by-step explanation:
___________________________________________________________
Number 1 [tex]>See Below<[/tex]
[tex]The\;second\;one,\; 7 *10+1*1+8*0.1[/tex]
___________________________________________________________
Number 2 [tex]>See\;Below<[/tex]
[tex]The\;third\;one, 7*1+1*0.01+8*0.001[/tex]
___________________________________________________________
Number 3 [tex]>See\;Below<[/tex]
[tex]The\;fourth\;one,\;7*0.1 + 1 * 0.01 + 8 * 0.001[/tex]
___________________________________________________________
If this helped, please mark me as brainliest if possible!
[tex]\left[\begin{array}{ccc}Thanks,\;JustSomeIdiot.\end{array}\right][/tex]