What is 39.51 to the nearst secod?

How many 4 number combinations are therefor 36 numbers? Which of these number are divisors of 64 - 2 6 8 12 16? A certain colony of bacteria triples in length every 15 minutes it? Do 3 inch tubing and 3 inch pipe have the same outside diameter? What are 3 equivalent fractions for 7.8? What does forty percent equal in a decimal and a fraction? What is a finite collection of in two diretions? Those who advocated Black Power wanted to see positive changes in? What is a fraction less than two thirds but greater than one half? What number is a square and triangle number? What is a square number a 2 digit number and the product of its digits is 8? What does 10hundreds equal? What is a remainder of a number that is divisible by another number? What country are sum 41 from? Is 4 over 10 equivalent to 2 over 8? What is the maening of the seven seeas? What type keys is used to type Roman number two? Do all polygons have rotational and line symmetry? What is the GCF of 27 and 80? What is product of seven negative integers?