35 lbs of apples cost $420.
How much would 6 lbs cost?

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?

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

Yvaries directly as x. y =90 when x=6. find y when x=13