my daughter is having trouble with some homework. the question is, " how to write the number 21,054 using ONLY hundreds, tens and ones in 3 different ways. HELP!

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

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