9. marcia needs a packing box with a
volume of at least 180 cubic inches.
10 in.
4 in.
5 in.
part a
is the box the correct size? explain.
part b
shipping costs $0.15 per cubic inch.
how much will marcia pay to ship
the box?

Step-by-step explanation:

if 10, 4 and 5 are the height, length and with then it's simple to find the volume.  the volume of a box (the shape in general called a rectangular prism, is length times width times height.  So now we'll find that.

l*w*h

10*4*5

200  So the answer to part A is it is the correct size since it is at least 180 cubic inches.  It is greater than that.

Part B

This is just multiplication.  If it was just 1 cubic inch it would be 15 cents.  Two cubic inches is 30 cents and so on.  We happen to have 200 cubic inches, so 200*.15 is $30

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: