Why is p logically equivalent to "not" "not-p"

What are the mean median mode and range of the data set given the altitude lake in feet -12 - 9 - 14 - 39 - 49 - 49 - 18 - 43

Evaluate 5/28 x 7/9 in a simplest form

What letter comes next A Z E B I Y O?

Find the simple interest earned on $650 invested at 3 ½% for 10 years.

In a store parking lot the ratio of blue cars to silver cars is 2:3 there are 24 blue cars how many silver cars are in the lot

Ken is thinking of a number. nine more than the product of 4 and the number r is 73. find Ken's number

Consider the functions f (x) = 2x + 1 and g (x) = x2 - 10. What is the value of f[g (3) ]? 39 -3 -7 -1

Last years average ticket price was £22 this year the average ticket price has increased by 5% what is the average price now

One of the altitudes of the parallelogram shown is 1223 units. What is the length of the other altitude? 5 units 6 units 30 units V40 units

Stacey's fruit salad recipe uses proportional amounts of different fruits. There are 2 cups of grapes for every 5 cups of pineapple. There are 4 cups of pineapple for every 5 cups of apples.