moby sold half his toy car collection, and then bought 12 more cars the next day. he now has 28 toy cars. how many cars did he have to start with

Your favorite anime series has episode that are 20 minutes long. In the equation below w is the number episodes you watch and t is the number of minutes you spend watching anime

Compute 2 1/5 of 83 feet

10 red marbles and 10 blue marbles are placed into a bag. alex mixes up the bag and randomly selects a marble. he continues to do so, replacing the marble after each selection, until a red marble is selected

One of the factors of 3p^5 - 12p^3 is p^4 p+2 p^2+4 4

Express the number in scientific notation. 63,600,000 a. 6.36 x 10^7 b. 6.36 x 10^-7 c. 63.6 x 10^6 d. 636 x 10^5

Over which interval is the graph of f (x) = - x2 3x 8 increasing?

Equation 1 is - 8x + y = - 13 Equation 2 is y = 8x + 5 The following system of linear equation has how many possible solutions? A. 1 Solution B. Infinite Solutions C. 2 Solutions D. No Solution

How do I simplify x^2*y^-3*y

Alfie thinks that if he cuts a parallelogram along a diagonal, he will get two triangles that have the same shape and size. Is he correct? Construct a math argument to justify your answer.

Find all the real square roots of - 9/16 a. no real root b. - 3/4 c. - 3/4 and 3/4 d. 81/256