In an enterprise project, Anish buys sweatshirts for £22.50 each. He must decide what price, P, he wants to put on each sweatshirt.
If he doesn't sell them all, he will reduce this price, P, by 10%
He still wants to make 20% profit on the cost of each reduced-price sweatshirt.
What should the price, P, be of each sweatshirt?

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?

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys