Me ajudem por favor: 3x+30=80

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

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

What are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2