Abicyclist was on a three day tour around a lake. on the first day, he rode 78 miles, on the second day he rode 54 miles, and on the third day he rode twice as far as the second day. which of the following is a good estimation of how far he rode in the three days?

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?