Which equation can be used to determine the value of x ?

Find the distance between the pair of points a(-1,8) and b(-8,4)

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay