a sample of 100 pregnancies were found to take an average of 267 days. the population deviation is known to be 13 days. find a 90% confidence interval for the true population mean.

A theatre contains 454 seats and the ticket prices for a recent play we're $53 for adults and $26 for children. if the total proceeds we're $16259 for a sold-out matinee how many of each type of ticket we're sold?

Jack purchases 12 gallons of gas on Monday. He uses 2 3 of the amount purchased commuting to and from work during the week and an additional 2 gallons running errands. How many gallons of gas does John use for work and errands?

Leela sold her necklace for profit of 7% if she sell it for 294 more dollar she would have got 10% profit what is cost price

You are working as a locksmith. Of the 50 customers you had today, 15 of them needed a new key for their car. What percentage of today's customers needed a new key for their car? How do i figure this out? A. 0.030% B. 0.3% C. 3% D. 30% E. 300%

35 = j - 5 Solve ewuation using multiplication or division

What is the approximate value of log 12 if log 2 = 0.301, log 3 = 0.477, and log 6 = 0.778

Boxes of 6 ‑inch slate flooring tile contain 40 tiles per box. The count X is the number of cracked tiles in a box. You have noticed that most boxes contain no cracked tiles, but if there are cracked tiles in a box, then there are usually several.

How to divide 8.4 and 0.3

Quadrilateral GHand JK has vertices G (2, 3), H (8, 2), J (6, 8), K (3, 6). It is transformed according to the rule T (-4, - 5). What are the coordinates of G

The legs of a right triangle are 8 and 6 inches respectively. what is the sine of the triangle smallest interior angle