Answer:
B
Step-by-step explanation:
She bought x number of $7 cd and used and $10 gift card so
7x-10=32
7x=42
x=6 cds
The dog eats 7 cans plus d cans?
this any help?!!?
Answer:

Step-by-step explanation:
When adding rational numbers, if the denominator is the same you simply keep the denominator (bottom of fraction) as it is and apply the operation given to the numerator ( top of fraction )
So we have 
==> remove parenthesis and apply signs

==> simplify numerator by combining like terms

and we are done!
Note:
like terms are terms with the same variable and exponent
An example of like terms are 6x^7 and 3x^7 as they have x as a variable and a power of 7
The like terms being combined here were (6x² and 4x²) and (5 and -2)
Answer:
4
Step-by-step explanation:
The answer is four because 10% of the whole tray (40) is 4
Equation:
.1 * 40 = 4