Answer:
It is B
Step-by-step explanation:
1+2g = -7
-1 -1
-------------
2g = -8
2g = -8
÷2 ÷2
-----------
g = -4
1+2 (-4) = -7
It would cost 2.50$ for each shirt.
The only ways i thought of was 0.7, 0.70, and 0.700 .
Quadratic is in the form
ax^2+bx+c=0
so distribute and stuff and simplify
remember
a(b+c)=ab+ac
(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0