Erick receives money from his relatives every year on his birthday. Last year, he received a total of $94. This year, he received a total of $141. What is the percent of increase in Ericks annual birthday money, explain how you got that answer( Plss answe!

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