The mean life of a tire is 30.000 km. The standard deviation is 2000 km.
Then, 68% of all tires will have a life between
km

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Factor the polynomial by its greatest common monomial factor.

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?