What times 15 equals 80?

What number is next in this sequence 2 9 5 13 10 19 17? 55 question test how much is each question worth? What is the weight in grams of a US silver half dollar? What is a synonym for the word taken? What is 3600 x 24? How many g are in a are in 120 mg? How likely adverbs? Anna is 3 years older than Laura the product of their ages is double the sum of their ages how old are they? What is 1300 divided by 6? What is 11 over 12 minus 3 over 4? What is a mathematical sentence that shows how 2 expressions are equivalent? What is ten percent of two thousand thirty three dollars? What is the exponential form of 12400? What is the greatest common factor of 120 and 165? What is 3.14 times 40? How do you write 67.24 million in standard form? How many millimetres in 50.6 cm? What's 10 percent of 18k? How do you write out 4.6 million? What is halfway between 0.09 and 0.1?