Hobby Hut sells sewing supplies. They sell needles for $2.50 per pack and pins for $2.00 per pack. Last week they sold twice as many packs of pins than packs of needles. If the total for the two items was $195.00, how many of each item did they sell? What's the varible(unknown)?

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

answerim :

n

step-by-step explanation:

im not sure but my dad knows

faster, im not sure why but i know it is faster

1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6