What is PERS-91?

What is 8 over 7 divided by 1 over 4 in simple form? What shape is solid and has four letters? What is the prime numbers in 16? CAP is divided into the three operational activities they are? The focus of Operation NEW DAWN will be on conducting operations? What is the calculated speed over an entire trip called? What is fraction 3 over 7 plus 8 over 9? Is equally an adverb? Roman numeral 350? When measuring board footage for some exotic woods a carpenter must use 1.25 inches for thickness rather than 1 inch in her calculations. Write 1.25 in expanded form? Why do scientists use the SI units? How many syllables does the word solved have? Can every prime number be expressed as the product of two prime numbers? What is the sum of the 4 prime numbers greater than 2 and less than 12? How many feet in 18.6 meters? How are pulleys and inclined planes alike? What is 539 x 2000000000? What is a symmetrical date and year called? What is mean by r1 term? Does a proper fraction ever have the same?