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What describes horizontal cross section of the right rectangle 6m 8m 5m

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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?