In the diagram, gb = 2x + 3..
5x
x+9
what is gb?

5 units
10 units
15 units
30 units

i am not sure :

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:

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4