What is negative 2 plus 7?

What is 3 out of 16 as a percent? How can you estimate sums or differences of decimals? What tools are used for cardiology? What is the largest integer prime number? How do you write nine thousand and forty-five hundredths in standard form? How many kilo grams is there in 400g? Does a positive number plus a negative number equals? What are some other words for product in math? What is the meaning of octavina? What is y equals x plus 2 y equals 2-x? What are two consecutive even integers? What multiplies to -8 and adds to -3? What do you call a person who is present when an event occurs? What does zootalore mean? How many people fit at a 45 inch round table? 0.015 L equals how many mL? Where is 1 degree 17 minutes west 32 degree 36 minutes south? What is the define of probability? How do you make figure 8 sign? Which ordered pair could be a solution to this inequality 3y -1 - 2x?