Perry's graduation picnic will cost $8 if it has 4 attendees. if there are 7 attendees, how much will perry's graduation picnic cost? solve using unit rates.
$__

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:

5

step-by-step explanation: