At a cat show 2/7 of the people have brought at least one cat. The rest are just watching.
3/5 of the people who are just watching are female.
a). What fraction of all the people at the cat show are female and are there just to watch?
b). What fraction of all the people at the cat show are there just to watch and are male?

Plz solve it if you can in steps
And I am really thankful to you

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

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