If a truck can carry 1.4 tons of dirt at one time, how many trips must it make to carry 11,200 pounds of dirt. hint: 1 ton is equal to 2000 pounds.

As the total amount of dirt is in pound , so first we need to express 1.4 ton in pounds.

Now, 1 ton= 2,000 pounds

So, 1.4 ton= (2000×1.4)=2,800 pounds

The truck can carry 2,800 pounds of dirt at one time and it need to carry total 11,200 pounds of dirt.

So, the number of trips it must take= (Total amount )/(Amount in each trip)

=

= 4

a - base

b - exponent

so,

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb