Keri walks her dog every morning. the length of the walk is .055 km on each weekday. on each weekend day, the walk is 1.4 times as long as a walk on a weekday. how may km did keri walk in one week?

After two years, how much has been paid into interest?

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?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?