Rosa has 55 books and gives 5 of them to her friend. How many does she have left?

What is - 6 over 0 equal to?

If one factor of 21xy^3-15x^2y^2 is 3xy^2, what is the other factor

1. Use Euler's Formula to find the missing number. edges:49 Faces:21 Vertices:? A. 30 B. 32 C. 26 D. 28 2. What is the scale factor of a cube with a volume of 512m^3 to a cube with a volume of 3,375 m*3? A. 8:15 B. 64:225 C. 15:8 D. 225:64

How do you find x is angle 1 is 2x-8 and angle 3 is 116

Make an equation with 123559 that equals 68.

Would you rather Run at 100 mph or fly at ten mph?

Solve the differential equation by variation of parameters, subject to the initial conditions y (0) = 1, y' (0) = 0. 9y'' - y = xex/3

Joey rolls a regular number cube. What's the chance he rolls an even number? Record your answer as a simplified fraction using "/" as your fraction key.

You are playing a game and it is your turn to spin the spinner shown. There are four possible results: blue, green, yellow, or purple. What is the probability that you land on purple?

seventy percent of the 100 students in a middle school cafeteria bought their lunch. Some of the students that bought their lunch leave the cafeteria to attend an assembly. Now only 60% of the remaining students bought their lunch.