A balloon vendor sold 225 balloons on Saturday. He sold red, yellow, and blue balloons. He sold
100 red balloons and 25 more red than blue. How many
yellow balloons did he sell?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?