Promise Easy Points Calculate the average monthly expenses for these individuals?

Kelsey spent $350 in May, $432 in June and $420 in July. Her average monthly expenses are:

Michael spent $700 in April and May and $800 in June and July. His average monthly expenses are:

$420+$350+$432=kelsey's monthly expenses  

$700+$800=Micheal's Monthly expenses

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

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: