At the store julie bought a shirt for $23.97, which was 25% off the original price. which of these should she use to find x, the original price of the shirt? a) 0.25x = 23.97 b) 0.75x = 23.97 c) 23.97 - 0.25x d) 23.97(0.25) = x e) 23.97 - .75x

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

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: