Sam invests £1800 in the bank for four years. It earns compound interest of 4% each year. Calculate the total
amount Sam has in the bank at the end of
four years.

The table above shows approximate conversions from gallons to liters. what is the value of x?

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)