Yes, it is the same thing because 2 1/4 = 9/4
Answer:415
Step-by-step explanation:
Angle DBE + Angle CBE = 90°
(0.1x-22)° + (0.3x-54)° = 90°
(0.4x - 76)° = 90°
(0.4x)° = 166°
x= 1660/4 = 415
(0.1 415 - 22)° + (0.3 415-54)° = 90°
41.5 - 22 + 124.5 - 54 = 90
166 - 76 = 90
The answer is D because it lines up with the y intercept
Factor the equation:

set each part of the factorized equation to zero and solve for x the results are your zeros:
x+3 = 0
x = -3x-8 = 0
x = 8
6/7 is the ratio in simplest form.
You take 24/28 and divide it by their GCF, which is 4.
24/28 divided by 4/4 is 6/7.