If I have 25 dollars and want to buy something for 14 dollars and 99 cents how much money will I have left

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?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?