What is PERS-91?

What are the Steps involved in construction of frequency distribution table? What two numbers can you multiply to get 36 but subtract to equal 24? How do you convert 1m3 to kg? How much is 162.89 plus tax in California? How do you find the approximate average number of something? Is 1160 divisible by 3? How many question you can miss to get 75 percent on a 42 question test? What is the gcf and the lcm for 60 and 72? How do you find the product of two numbers you? Is 324 a multiple of 3? How do you say 1256348? What is seven and five sixths plus three and two ninths? How is an integrated lesson different from a topic- based unit? How does 0.77 recurring equal 7 over 9? 6.7 equal how many mg? What is 8a certification? How much taller is 5.6 compared to 4'11? What is a binomial coefficient? Given PQRS and equals 53 and equals 7x plus 4 what is the value of x? What are half numbers?