There are no zeroes for an expression, only for equations.
Assuming equation to be
<span>−7x^2 − 91x − 280=0
-7(x^2+13x+40)=0
-7(x+8)(x+5)=0
by the zero product properties,
x+8=0 => x=-8
or
x+5=0 => x=-5</span>
Answer:
7 packages of cinnamon
Step-by-step explanation:
3.15/0.45 = 7
Yes he is right because 100/20 is 5 and 7 times 5 is 35%
