Christian worked 5 hours each day monday through friday . on saturday and sunday , he worked 2 hours less each day than he did during the week . how many total hours did he work during the week and weekend

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

What does x = in this equation x+3+2x=x+5

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1