The lengths of a lawn mower part are approximately normally distributed with a given mean Mu = 4 in. And standard deviation Sigma = 0. 2 in. What percentage of the parts will have lengths between 3. 8 in. And 4. 2 in. ? 34% 68% 95% 99. 7%.

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?