A company's revenue from selling x units of an item is given as R=1200x-2x^2. If sales are increasing at the rate of 55 units per day, how rapidly is revenue increasing (in dollars per day) when 170 units have been sold? Dollars per day

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

(60 points) explain this in detail