If a convex polyhedron has 18 edges and 12 vertices, then how many faces does it have?

Rational and Irrational Numbers what is it explain

Your bank offers a free checking account as long as the balance is at least $200 at the end of each billing cycle. yesterday your balance was $224.37 but you just made a debit card purchase of $30.79.

Find the area of the surface generated by revolving the curve x = (e^y + e^-y) / 2 from x = 0 to x = ln (2).

A zoo charges $8 per person for admission. An annual family pass costs $130. How many times does a family of five have to visit the zoo for the annual pass to be the better deal?

Darryl has $7 left in his pocket. He spent $9 on a book, $12 on a compact disc, and $4 on a magazine. How much money did he have at the beginning of the day?

2sin^ (-2490) + tan 1410

How many different combinations of 1 odd number and 1 shape are possible

The difference of the squares of two consecutive odd integers is 24. find the integers

Which function has a phase shift of pi/2 to the right? a) y=2sin (1/2x+) b) y=2sin (2x+pi) c) y=2sin (x+pi/2) d) y=2sin (x-pi) e) y=2sin (2x-pi)

Factor the expression45c+10d