Find the mean of the data summarized in the given frequency distribution. compare the computed mean to the actual mean of 56.556.5 degrees. low temperature (circle◦f) 40minus−44 45minus−49 50minus−54 55minus−59 60minus−64 frequency 33 55 1212

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%