The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.
y=3x108/x
What are the wavelengths for X-rays with frequency 3 x 10^18
1 x 10^-10
3 x 10^-10 m
3 x 10^26m
9 x 10^26m

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jame pay at the end?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb