What is hexadecimal addition?

A pound contains 16 ounces 9 ounces is what fraction of a pound? 4.753 in word form? What does round to the nearest whole number 7.4? How do you write 2 and 35-100 in decimal form? How much is a Grundig stereo console so 142 px worth? 5 weeks to save who will reach his/her goal saving $285Member A: Works 8 hours a week at $6.15 per hourMember B: Works 10 hours a week at $5.85 per hourMember C: Works 7 hours a week at $7.25 per hourMember D: Works 9 hours a week at $6.35 per hour? Is 4000 yd bigger than 2 mi? What is the 99th prime number? What is 363 to the nearest hundred? What numeral with six nines whose value is 100 no operation symbols may be used but a decimal point or fraction bar may be used? What is 25 percent of 1.2 million? What is 25 mulitplied by10? How many prime numbers in 1 through 99? What is 12 hundredths in decimal form? How do you rename a mixed number as a fraction? What fraction is 2 weeks is 4 days? How do you write 29 percent as a decimal? What is the smallest number with only five factors? What 1 percent of 40 billion? What is a googol squared 2?