George has a wood board that is 8 feet long. He notices that 2 3/5 feet of the board is damaged and cannot be used. George will use the rest of the board to make small boxes. Each box needs 7/10 feet of the board. At most, how many complete boxes can be made?

what does x eaqual

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: