Twenty seven decreased by three times a number is the same as 7 times the sum of the number plus 1. What is the number?

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?

Which of the following expressions is equal to 2x^2+8

Combine like terms to make a simpler expression 3z+z