How to find out the surface area of a 3d prism given only with 0.5m height and 6m length

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

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?