B because m=slope and if the equation goes y=mx+b the only answer would be B <span />
Answer: 
Step-by-step explanation:
You know that the triangle ABC and the triangle DEF are similar.
Therefore, if the lenght of AC is 12 centimeters and the lenght of DF is 10 centimeters, then you can find the ratio as following:

Then, the calculte the length of EF, you must multiply the lenght BC of the triangle ABC by the ratio obtained above.
Therefore, the lenght EF is the following:

Answer:
$90.90
Step-by-step explanation:
The item normally costs $110.99. If the sporting goods store is offering a 10% discount, it means that the price including the discount will be:
$110.99 x 0.90 = $99.891.
the in-line skates cost with the discount $99.89, not including taxes.