Diane drinks 1 1/2 pints of milk a day. how much is this in cups?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

The temperature at dawn was -2°f. during the day, the temperature increased 15 degrees, and then dropped 10 degrees in the evening. which expression represents the new temperature?