Complete the square: x2+7x+?=(x+?)2

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.