Answer:
C = 0
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
4/5*c-1/10*c-(9/10*c)=0
9
Simplify ——
10
4 1 9
((—•c)-(——•c))-(——•c) = 0
5 10 10
Hope this helps :D