Pls answer quick guys

To hide gridline when you display or print a worksheet

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. thus your code should put 11 + 22 + 33 + + 4949 + 50*50 into total. use no variables other than k and total.

To check spelling errors in a document, the word application uses the to determine appropriate spelling. internet built-in dictionary user-defined words other text in the document