Write each fraction or mixed number as a decimal. use bar notation if the decimal is a repeating decimal.
3 4/5
a. 7.6
b. 3.2631578947
c. 3.95
d. 3.8

ummm seems that u didnt post the attachement !

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:

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct