On friday,
215 people went to the street fair. on
saturday, 163 more people went to the
street fair than on friday. on sunday,
192 people went. in total how many
people went to the fair? what are two
ways you can use to find the answer?

equal to

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:

2

step-by-step explanation: