Erica has 5 blue pens and 3 black pens and 6 red pens in her desk drawer if she randomly chooses a pen from her drawer what is the probability that she will choose a black pen

3/11

Because there are 3 black pens and 5 blue and 6 red its 3 out of 11 so it should be 3/11 im not good at explaining just trust me

3/14

Step-by-step explanation:

You will need to add all together then put the total of black pens on the numerator and 14 on the denominator

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.