There are 20 students in the group , 15 from them are athletes. it is taken for competition 10 students. find the probability that 10 students are 5 athlet

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189