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

The price of blue blueberry muffins at a store can be determined by the equation: P=$.70n, where P is the price and the n is the number of blueberry muffins If Rod $16.10, how manny blueberry muffins could he buy?

My friend Kelly buy my friend 1234 and me2345 how many in all

One number is one less than five times another. if their sum is decreased by three, the result is eight. find the numbers.

Un examen de matemáticas

Does 20/8 and 28/9 form a proportion

What is x+y = 16 3x = 24

What value of x will make the equation 5x-2/11 = - 7 a true statement

Rectangle ABCD has vertex coordinates A (1, - 2), B (4, - 2), C (4,-4), and D (1, -4). It is translated 1 unit to the left and 3 units up. What are the coordinates of C? O O A. (3,-1) O B. (5,-7) O C. (1, - 3) O D. (7.-5)

What mixed number is equavilant to 3/4 as a mixed number

Which expression is equivalent to cos 150?