Answer:she has 20 pennies because
Step-by-step explanation:80 divide by 4 = 20
Answer:
I believe the bottom one is true and the rest are false
Step-by-step explanation:
bottom one true
Well, A would equal 24 because a equal x times 3
Here we are given
<span>8x^3-27
now making both as a cube root
</span><span>(2x)^3-(3)^3
using formula cube root
</span><span> a^3-b^3=(a-b)(a^2+ab+b^2)
</span>where
a=2x
b=3
now putting these values
<span>2x^3-3^3=(2x-3)(2x^2+2x*3+3^2)
simplifying
</span>2x^3-3^3=<span>(2x-3)(4x^2+6x+9)
</span>hence the right answer is
2x^3-3^3=<span>(2x-3)(4x^2+6x+9)</span>
