Atv costs £800 plus vat at 20% what is the total cost of the tv?

What is the volume of this square pyramid?

The sum of two numbers is 86, and their difference is 20. find the two numbers

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?