The zoom feature on a camera lens allows you dilate what appears on the display. when you change from 160% to 700%, the new image on
your screen is an enlargement of the previous image with a scale factor of 7. if the new image is 17.5 millimeters wide. what was the width of
the previous image?

a 8.75 millimeters
b 2.5 millimeters
c 122.5 millimeters
d 61.25 millimeters

121 pints. they had 176 and drank 55

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.