An average adult can hear sounds with frequencies between 20 waves per second and 16,000 waves per second. What is the wavelength, in meters, of a sound wave with a frequency of 20 waves per second?

How do I write x^2+3x+2 in factored form.

When a number is decreased by 45%, the result is 9. What is the original number to the nearest tenth?

A gym charges $50 activation fee and $17 per month for a membership. If you spend $356, for how many months do you have a gym membership

In one day, a toy store sold 15 toy cars and 20 yo-yos for a total of $190. The next day, the toy store sold 3 toy cars and 12 yo-yos for a total of $102. What is the cost of one toy car?

To which real number subset do the following real numbers belong? A. rational numbers B. integers C. irrational numbers D. natural numbers

Erin loves to play sports! She has earned 3 tennis trophies, 4 basketball trophies, 7 soccer trophies, and 1 volleyball trophy. What is the ratio of Erin's tennis trophies to soccer trophies?

Underneath the skin and layer fat there is a layer of connective tissue before reaching the muscles. What is this connective tissue called?

the current population of a city is about 2,130,000 people, and its increasing at a rate of 10 percent per year. arrange the steps in the correct order to show how to determine the population of the city in 5 years

What is the equation of the following line (1,9) (0,0)

2 5/16 divided into 7/8 equals what