The answer is c, -1 or -7
Hope this helped :)
Answer:
$1.83
Step-by-step explanation:
$2.15 (original price of cookies) - 15% (discount) = $1.83 (rounded since the original total was: 1.8275)
Answer: 4/10 = look below for explanation
Step-by-step explanation:
Transform 2/5 into the same demononator
= 2/5 becomes 4/10 because you've multiplied 2x2 and 5x2
which becomes 4/10 and 1/10
to solve: 4/10 - 1/10 = 3/10
For this case we must solve the following equations:

We subtract 3x on both sides of the equation:

We subtract 7 on both sides of the equation:

We divide between 2 on both sides of the equation:

The second equation is:

We apply distributive property to the terms of parentheses:

We add common terms:

We add 10 to both sides of the equation:

We divide between 5 on both sides of the equation:

Third equation:

We apply distributive property to the terms within parentheses:

We add similar terms:

We subtract 6x on both sides of the equation:

We subtract 5 on both sides of the equation:

Answer:
