Step-by-step explanation:
y cannot be determined from the information given
Tommy’s class rank dropped 10 %
Step-by-step explanation:
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Step 1:

Wright the equation
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Step 2:

Transfer the power of y ie ¹² up to subtract it
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Step 3:

by subtracting the powers we get 0
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Step 4:

so the results comes 1 because anything ⁰=1
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⚡Final answer :1✓
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hope it helped you:)
Answer:
SAS postulate
Step-by-step explanation:
AD (common)
AC = BD (both are diameters)
Angle COD = Ange AOD (vertically opposite angles)
Angle CAD = Angle BAD (angle on the circumference is half the angle at the centre)
Therefore, ABD and DCA are congruent by SAS postulate
1.50x + 450 = 3x
450 = 3x - 1.50x
450 = 1.50x
450/1.50 = x
300 = x
300 copies must be sold to break even