Suppose a professor uses a normal distribution to assign grades in her math class. She assigns an A to students scoring more than 2.1 standard deviations above the mean and an F to students scoring more than 2 standard deviations below the mean. She assigns a B to students who score between 1.1 and 2.1 standard deviations above the mean and a D to students who score between 0.9 and 2 standard deviations below the mean. All other students get a C. What percent of the class receives each grade assuming the scores are normally distributed?

The dimensions, in inches, of a shipping box at we ship 4 you can be expressed as width x, length x+5, and height 3x-1. the volume is about 7.6ft^3 find the dimensions of the box in inches. round to the nearest inch

You and three friends will be going out to eat at your favorite restaurant! each of you will order three items of your choice. you will also need to leave a tip. if you split the bill evenly among all four of you, how much will each person need to contribute? locate a menu for your favorite restaurant and pick three items for yourself and each friend. list the restaurant name, items, and prices in a table like the one below. in the column labeled subtotal, determine the cost of each person’s order. the customary tip is 20% of the total bill. in the column labeled tip, calculate the amount of tip each person should leave. in the column labeled total bill, determine the total of each person’s order, including the tip. restaurant name: names item 1 price item 2 price item 3 price subtotal tip total bill your name friend #1 friend #2 friend #3 part 2: questions answer the following questions, showing all work: what is the total cost of the entire bill (all four meals), including tip? write an expression using fractions to show how to determine the amount that each person will pay. then calculate each person's contributions showing all steps in long division. if each person paid an equal amount, who would save the most money? explain your reasoning using at least two complete sentences.

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1