Write the place value of the underlined digit 2.round each number to the underlined digit 2.576

Umm.. just started this 2day and its not on my notes(p′︵‵。)

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?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.