Use substitution to solve the linear system of equations.

x = 4

-y = 1/2x

A) 4, 2

B) - 2, 4

C) 2, - 4

D) 4, - 2

The sum of two numbers is 20 and their product is 96. Find the numbers.

The perimeter of a square is 80 cm. What is the area?

What is the surface area of the rectangular pyramid below? A rectangular pyramid. The rectangular base has a length of 18 feet and width of 10 feet. 2 triangular sides have a base of 18 feet and height of 14.1 feet.

Net pay is the difference between a worker's gross income and his or her deductions. A person's gross income for the year was $65,000 and their total deductions were $12,860. What was their net pay for the year?

What's 3.2 cm rounded to the nearest tenth

Molly is making a sign in the shape of a trapezoid. One base is 18 inches and the other is 30 inches. How high must she make the sign so its area is 504 square inches?

While hiking, Sanjay went up 200 meters. If Sanjay started at 500 meters above sea level, which integers represents his elevation now?

Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 - 2 (7) (25) cos ___ = 242 A. 180° B. 90° C. 16° D. 74°

What is 8/9 as a percentage

A right triangle has one leg with a length of 10 m and another left with a length of 12 m. What is the length of the third side of the triangle? OA) 22 meters OB) 15.6 meters OC) 6.6 meters D) 2 meters