Well mode is the number that shows up most often so it could show up a couple times but that doesn't mean that the mean (add up the numbers and divide by how many numbers there are) and median (put the number in order from least to greatest and find the middle number) cant be 90
A) HD Headphones. x=110 x=$70 ea
110×70=$7,700 for HD Headphones
10,000-7,700=2,300 left
y×w=2,300 for basic headphones
My guess, 230 basic headphones for $10 each
b) Basic headphones y×w
55×20=$1,100
2,000-1,100=900
HD Headphones
x×z=900
x=10,z=90 10×90=900
(I'm assuming that the price per item is higher due to the smaller quantity.
The answer is C.
For a relation to be a function every x-value must be associated with one y-value. C has the x-value of 1 have two separate y-values. The others do not have an x-value that repeats.
Let b be the initial amount of books. Steve sells half of his books, so the number of Steve's books become
Then, he buys 6 more, so the number increases by 6:
This number is now 14, so you have
Subtract 6 from both sides:
Multiply both sides by 2: