The mean undergraduate cost for tuition, fees, room, and board for four-year institutions was $28,685 for a recent academic year. suppose that the standard deviation of the distribution is $4201 and that 50 four-year institutions are selected at random. find the probability that the sample mean cost for these schools is:

a. less than $26,000

b. greater than $30,000

c. between $27,000 and $31,000

Andy is making a design using ice cream sticks that are 4 and 1/2 in long he wants this long side of his designed to be no longer than 24 inches what is the greatest number of sticks that any can use on his long side of his design

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .