A triangle in the xy-coordinate plane has vertices with coordinates (7, 0), (0, 8), and (20, 10). what is the area of this triangle

Let f (x) = 8x - 3. What is f (5) ? A. 43 B. 40 C. 37 D. 45

The sum of the numbers m, n, and p is 24. The ratio of m to n is 2:5, and the ratio of n to p is 5:3. What is the value of n?

In simplest form, which mixed number is equivalent to 22/8

In the first two hours of the trip, Julissa drove 120 miles. In the next hour, she traveled only 48 miles. What was Julissa's average speed in miles per hour (mph) for the three-hour drive?

A hyperbola has vertices (+-5,0) and one focus (6,0) what is the standard form equation of the hyperbola.

At the beginning of the year 2002, Sarah put $250 in a savings account. The bank agrees to pay Sarah 3% interest on her total savings at the end of each year including the interest added to the account.

The length of a rectangle is 3 inches more than its width. If the length and width are each increased by 2 inches, the perimeter of the rectangle becomes 66 inches. If x is the width of the rectangle, find its length and width.

A loan of $1000 is to be paid back, with interest, at the end of 1 year. Aft er 3 months, a partial payment of $300 is made. Use the US Rule to determine the balance due at the end of one year, considering the partial payment.

How many hours would someone who earns $6.75 per hour have to work to earn $104.63?

A 1200 kg car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?