Let a be a non-zero rational number. Is 1/a rational or irrational?

Check all of the expressions that are equal to the one below? 6 x (9 + 2) A. (2 + 9) x 6 B. 9 x 6 + 9 x 2 C. (6 x 9) + 2 D. 6 x 9 + 2 x 6

The ratio of the volumes of two similar circular cylinders is 27:64. What is the ratio of the diameters of their similar bases?

Rico earns a weekly salary of $750 and a 5% total commission on his sales. Sean earns a weekly salary of $1,000 and a 2.5% commission on sales. What amount of sales will result in each of them earning the same amount for the week?

Leo is sitting on a bench in the mall. He noticed that 4 out of the last 6 men who walked by had beards. Considering this data, how many of the next 12 men that walk by should Leo expect to have beards?

Solve the system. {d+e=2 { d-e=4 Use the substitution method. The solution is (5, 1) The solution is (3, - 1). There is no solution. There are an infinite number of solutions.

For his long distance phone service, Eric pays a $7 monthly fee plus 7 cente per minute. Last month, Eric's long distance bill was $19.04. For how many minutes was Eric billed?

Find the product of the complex number and its conjugate. 3 + 3i

If the general term of a sequence is 4 then the sequence is

How many solutions does this system have? y = 5x + 6 y - 5x = 7 A. no solutions B. 1 solution C. 2 solutions D. infinitely many solutions

Computer screen is 13 inches long and 10 inches wide whats the area and perimeter of the computer screen?