The range and standard deviation of a data set are both measures of what

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis