If the mean of normally distributed test scores is 78 and the standard deviation is 7 find the percentage of scores in the following ranges:

a) 71-92

b) 64-100

c) 70-80

Miss Ferguson recorded 17 absences the first 30 days of school. During the last 60 days of school, she recorded 42 absences. Are the rates equivalent?

The ratio of apples to pears in a bowl is 9:15 there are 21 apples in the bowl how many pears are there?

7242 rounded to the nearest tenths

Employees at Counting Sheep Mattress Company earn 40% commissions on each mattress they sell. Jason sold a mattress for $1,149. How much commission did Jason earn?

Elena's daughter sold 23 boxes of girl scout cookies. She was tols this is 10% of the troops sales. How many boxes did the troop sell?

Solve this, if u r brilliant ... 1. I am a 11 letter Indian city. 2. Last 6 letters is fruit name. 3. 7,8,3 letters is a bird name ... 4. 6,7,5,3 is a part of the face. 5. 1,8,3 is used by student 6. 9,5,3 is a soap name 101% brain work. Reply.

What is the work for 812 divided by 4 short division

Katie is 3/5 of the way to brianna's house. larry is 7/10 of the way to briannas house. how much closer to briannas house is larry

State the number you would multiply each side of the proportion by to isolate the variable. r/6 = 5/6

The Austin college bookstore is giving a discount of $8 on calculators that's normally sell for $24. what is the discount rate?