What is the area of a triangle when b=10 and h=4 ?

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Write the equation in logarithmic form e^x=403.429

Let x = a + bi and y = c + di and z = f + gi. which statements are true?