How many times larger than 3x10^2 is 12x10^6?

a)3.6x10^8
b)1.2x10^7
c)4x10^8
d)4x10^4

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?