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

A sector is a portion of the circles area true or false

Kerille is reading a book at the rate of 4.5 pages per minute. What ordered pair on a graph of his reading rate would represent the number of minutes it will take him to read 90 pages?

Adding m and n and then multiply by 7 Multiplying m by 7, multiplying n by 7 and then adding the 2 products. Do they get the same result

Alaina evaluated 17/18+1/20 and got an answer of 18/38. Which statement is true about her answer? Her answer is not correct because when you add fractions, the sum is always greater than 1.

What is diagonal and how do you find it

A circle's diameter is 22 inches. What is the circle's circumference

You grew 3.8 inches since last year. If you are 61.2 inches tall now, how tall were you a year ago? Write and solve an equation.

A square and rectangle have the same perimeter. The rectangle is 13 cm long and 7 cm wide What is the length of a side of the square

What do 20% off the regular price mean?

a box is 24cm by 15cm by 10cm. this box will packed with smaller boxes of paper clips which are 6cm by 3cm by 5cm. what is the largest number of boxes of paper clips that will fit in the bigger box?