A radioactive element has a half-life of six days. What is the approximate decay rate of the element after the first day? 0.9%
1.5%
8.3%
10.9%

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?