Ashton is making a recipe that calls for 2/3 teaspoon of cinnamon. his only measuring spoon holds 1/8 teaspoon. how many times will he need to fill his measuring spoon to get enough cinnamon for the recipe?

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Write the expression as a single natural logarithm. 2 in a - 4 in y