A5 lb. bag of potatoes this week is $3.50. last week, it cost $2.75.
what is the percent change?

0.21

Step-by-step explanation:

to find the percent change of something you must subtract the new-old divided by the original price.

$3.50-$2.75= 0.75

0.75÷3.50

0.2142857142857143‬

so we round and get

0.21

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.