Please i neee an urgent answer .A father is 20 years older than his son .12 years ago he was 6 times as old as his son. find their present ages​

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

100 points, hi, i’m not sure how to get the equation from the graph and table.

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?