a college bookstore claims the average price of a textbook is 65, but several students claim the cost is higher. write the null and alternative hypothese

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?

How do you find principle and simple interest

Abcd is a square. what is the measure of angle bac