Two bumper cars of mass 150 kg and 250 kg respectively undergo a head on col- lision. The latter collision produces a pair of forces goes to three of his friends,
who take another bumper car. The collision between the two cars produces a pair
of forces of 45 N each.
(i) What acceleration does each bumper undergo as a result of the collision?
(ii) What is the distance between the two bumper cars after two seconds?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.