How many 3-letter codes can be formed if the second letter must be a vowel (a, e, i, o, u) ?

Suppose a bus arrives at a bus stop every 30 minutes. If you arrive at the bus stop at a random time what is the probability that you will have to wait at least 5 min for the bus? A. 1/6 B. 1/5 C. 2/3 D. 5/6

F (x) = 3x+5 what is the function

A group of scientists wants to investigate if they can predict the life expectancy

Solve for x by factoring X2-2x=35

What makes the statement true? - 3 - = 6

Finding a sales price original 280.00 discount 80%

Euler's formula, V - E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedron. How many faces does a polyhedron with 5 vertices and 8 edges have?

12. x2 - 25 = 0 solve for square roots

How many solutions does the equation have? |p - 4| = - 5

F (x) = 2/3x+3, what is the value of f (12)