In 10 weeks, the value of bob treatmans day trading account decreased by $500. what was the average weekly change in the value of the account expressed as a signed number ?
$48 per week
$50 per week
$-52per week
$-56 per week

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

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 graph has a rate of change of zero