8 + (-4) = ?

What does 8 + (-4) equal to?

Lindsay is very excited to be getting a great deal on an iPad. It was originally $500, but she will only be paying $325. What percent did she save?

A taxi cab service charges $3.75 plus $.40 per mile. Molly takes a taxi cab from the local hotel to the airport. If the total charge was $10.95, which equation could be used to determine the number of miles from the hotel to the airport?

Which expression is equivalent to am : an?

A coin is tossed 10 times and lands tails up 3 times. What is the experimental probability of the coin landing tails up?

An empty vial weighs 55.32 g. (a) If the vial weighs 185.56 g when filled with liquid mercury (d 13.53 g/cm3), what is its volume? (b) How much would the vial weigh if it were filled with water (d 0.997 g/cm3 at 25°C) ?

Imagine you live only one mile from work and you decide to walk. If you walk four miles per hour how long will it take you to walk one mile

Travis and his three friends went to dinner to celebrate graduation. The guys decided to divide the bill evenly. Each person paid $15. Which equation can be used to find the total amount of the bill? x/3=15 15x=3 x/4=15 15x=4

A parabola has the equation y=x^2-x-6. A line has a slope 2 and y-intercept - 2. Think of the system of equations that you can create with this information. What is a good strategy to use in order to solve the system or equations?

Evaluate a2+ab-b2+5 when a=2 and b=3

Which of these is a two-step equation? A. X+9 = 21 B. x = 11 + 2 C. 2x+9 = 21 D. x/3=9