4 steps more north from where he started
I think
Okay so basically, i’m pretty sure you have to make them catch up with each other, if i’m correct), so if it’s 30 to each student plus 2500 then 2 students is 60 bucks, 3 students is 90 and so on so forth......then if 1 student - 60 then 2 is 120 and vice versa ya know. So keep adding on the amount due for each student plus the extra amount which doesn’t change and make them catch up with each other. Keep on adding student after student and adding the fee until they match up. Sorry it’s not the exact answer but i hope this explains it... if i’m right
-0.75-(-2/5) + 0.4 + (-3/4)
Simplify it :-)
-0.75 +

+ 0.4 -
Add the like terms / add your decimals with your decimals & your fractions with your fractions.
(-0.75 + 0.4) + (

-

)
Simplify :-)
0.35 + (

-

)
Simplify :-)
0.35 + (-

)
Now you turn your decimal into a fraction.
0.35 = 35/100 = 7/50
NEW PROBLEM :

+

= ??
Make both denominators 100.

×

= 14 / 100
7/20 × 5/5 = 35/100
NEW PROBLEM :

+

=

:-)
It would be 30 inches. Hopes this helps.