Light incident on a surface at an angle of 45° undergoes diffused reflection at what angle will it reflect?
a. only at angles less than 45
b. only at angles greater than 45
c. only at 45
d. at any angle between -90 & 90.
e. only at 0

#

its not a) only at angles less than 45 for sure  ;-;

Explanation:

oomph

answer is c

explanation:

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form