5/3 + (-7/6) reduce to simplest form

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n