4.
Evaluate (3.1 x 104) · (2 x 106). Choose the correct
A.
B.
C.
D.
5.1 x 1010
5.1 X 1024
6.2 x 1010
6.2 X 1024

%40

step-by-step explanation:

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4

the answer is  

a.

28 ft2

step-by-step explanation:

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.