Your mom gives you $20 and says buy as much rice and beans as possible. Rice is selling for $0.79/lb and beans are $1.29/1b. How many pounds of each should you buy to maximize the $20. Don't include tax.​

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