BRAINLIEST A boy went shopping with A dollars. He spent B dollars on groceries and C dollars on gifts. How much did he have left?

I guess since there isn't any numbers it would be

A-B-C

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:

answer:

idk

step-by-step explanation: