A dance teacher tells her hip-hop dancers to line up in 5 straight rows. In each row, there are 3 dancers.The letter d stands for the total number of dancers. Which equation can you use to find d?

After dinner, Bill washed 3 dishes. His daughter, Rachel, washed some too. They washed 6 dishes in all.The letter d stands for the number of dishes Rachel washed. Which equation can you use to find d?

A party program has four dances, two talk shows, three chorus, dance programs can not appear in a row, how many kinds of order of the program?

There are 24 football players warming up on the field. Their coach tells them to split up into 4 equal groups for a drill.The letter p stands for the number of players in each group. Which equation can you use to find p?

This equation shows how the total number of necklaces Rosa owns is related to the amount of money she spends on additional necklaces.n = 2dThe variable d represents the amount of money she spends on additional necklaces, and the variable n represents the total number of necklaces she owns. With $38 to spend on new necklaces, how many total necklaces can Rosa own?

Last Tuesday, a music school held a dance concert and a pop concert at the same time. A total of 574 people attended the concerts. If 327 people were at the dance concert, how many people were at the pop concert?