What the purpose of statistical studies

Jorge bought 16 apples for $8.00. Let x represent the number of apples purchased, and let y represent the total cost. Graph the line that represents the proportional relationship. (it doesn't have a graph because i need to graph it)

The standard deviat ion of the number 6,0,4,3and2is

Which ratios form a proportion? 3/15, 12/55 8/24, 12/35 5/18, 25/90 4/11, 16/25 What ratio forms a proportion with 9/15? 6/10 16/21 36/50 45/70

Find the length of AD if AB = 24, DE = 8, and DC = 12.

Which of the following has 8.012 in written form? A. eight and twelve hundredthsB. eight and twelve thousandthsC. eight and twelve thousandsD. none of the above

Kamal has big feet. Kamal's mom says she wouldn't be surprised if he grew to be 7 feet tall! Kamal's new shoes came in a box that measures 16 inches by 9 inches by 6 inches. What is the volume of the shoebox?

Five times the sum of the digits of a two-digit number is 13 less than the original number. If you reverse the digits in the two-digit number, four times the sum of its two digits is 21 less than the reversed two-digit number.

Divide give the quotient and remainder 295 dived by 3

Abby baked 48 dinner rolls and divided them evenly into bags. Let b represent the number of bags. Write an algebraic expression to represent the number of dinner rolls in each bag.

Find an equation of the line which is parallel to the line 4y=8x-5 and passing through (1,-3).