Amiri can deliver his newspapers in 85 minutes. it takes horus 65 minutes to do the same route. how long would it take them to deliver the newspapers if they work together?

If (17, 4) is an ordered pair of the inverse of f(x), which of the following is an ordered pair of the function f(x)? a. (17,4) b. (4.17) c. (4,0) d. 0,17)

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.