What is 6r-5t-8r-4t?

How many is two thirds out of 24? How many nautical miles in one minute of longitude? What times what equals -1500 but when added together equals -340? What is 3.12 times 71? What is the purpose of the Numerical Keypad? How do you calculate from scientific notation to pH? Do the odds of rolling a six with the roll of a dice increase as you increase the number of rolls? How many times does 18 go in to 35? What is the center of a hyperbola? What is five eighths of a gallon? What is the radius of a circle that has a diameter of 15 cm? What are the compound noun of 5 examples in phrases? What is the pass mark in maths? What is negative two minus five thirds? What is 16 rounded to the nearest tenth APR? How many significant figures does 340 have? Is 26 a prime our composite number? What us the LCM of 18 and 3? What did the presene of women add to boomtowns? Which of the figures here show a statistical comparison?