A box of 21 holiday cards sells for $3.99. What is the unit price per card?

Avery has 2 blue marbles. One sixth of Avery's marbles are blue. How many marbles does Avery have?

A soccer ball weighs 6 ounces when fully inflated. Raymond has inflated the ball to 4 2/3 ounces. How many more ounces must be added before the ball is fully inflated?

What does y stand for in y=mx+b

Is 1/6 greater than 1/5

the temperature of water in a lake at 9 a. m. is - 2.6 by noon the temperature of the water rises by 5.1 Celsius by 9 p. m. the temperature of the waterfalls by 12.

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)

A problem on a multiple-choice quiz is answered correctly with probability 0.9 if a student is prepared. an unprepared student guesses between 4 possible answers, so the probability of choosing the right answer is 1/4.