What is the sum of -18 (-19)?

What year is represented by the seven numerals listed in descending order? What is 10 eighteenths in its simplest form? Why poisson ration is less than 0.5? What are the step in problem solving process explains? Hcf of 55 77 132? Is 5 over 50 in simplest form? How do you write 3.3 as a mixed number? What is the product of the prime number imediately before and after 50? What is the 5 called in this expression 4 5? What is 35 over 180 in simplest form? When this polynomial is simplified what is the coefficient of x2? What is 40 multiplied by 7? How do you write 21.9 million in numbers? Is 0.4 equal to 4 tenths? What is circular diameter? What does 1 foot equal to in inches? What is 4 and half thousand pounds converted? How do you write 46.1003? The formula to proportion? What are 3 different ways you could write a chemical equation?