What is the ratio of the number of days in the week that do not begin with the letter "t" to the number of days in the week that do begin with the letter "t"?
a. 7 over 2
b. 2: 5
c. 2 to 7
d. 5 over 2

can someone answer this question plz

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: