What is the approximate length of the road in feet? 101 ft.,201 ft.,951, 957 ft.​

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

13cm

step-by-step explanation:

(apex)

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

$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