Lena owns 5 shares of a certain stock. Yesterday the total value of her shares went down by 20 dollars. What was the change in value for each share? (b)A private club grew by 9 members each week for 18 weeks. What was the total change in the club's size?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Write the equation in logarithmic form e^x=403.429

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