I would pick the “D” the same line
X^2 - 8x = -10 .....u would add 16 to both sides
x^2 - 8x + 16 = -10 + 16
take half of ur x term, ur x term is -8, half of it is -4, then u square it...-4^2 = 16, and that is what u add to both sides
X represents the number of sodas
y represents the number of hot dogs
142 = x + y
x = 38 + y
Substitute x in the first equation
142 = 38 + y +y
142 - 38 = 2y
104/2 = 2y/2
y =52
x = 38 + 52
x = 90
<h3>
Answer:</h3>
95%
<h3>
Step-by-step explanation:</h3>
4 minutes is 4×(60 seconds) = 240 seconds.
The amount of dance time is (240 -12) seconds = 228 seconds.
The percentage of music time spent dancing is ...
... (228 seconds)/(240 seconds) × 100% = 95%
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<em>Hi there!</em>
<em>~</em>
<em>The absolute value is the distance from 0 to 2.5. In this case the absolute value from 0 to |2.5| is 2.5 </em>
<em>❀Hope this helped you!❀</em>
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