61. If x=2, y=-3 and z= -4, evaluate (y-2)(x-2)(z - y)
A 210 B. 30 C. -30 D-210
(Nov 2013 (11)

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Miranda is braiding her hair. then she will attach beads to the braid. she wants 1_3 of the beads to be red. if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?