(x-y)(x-7)
You can get this by using the splitting method.
So, we know that 30% of 100 is 30. 50 is HALF of 100 so we can cut the 30 into half and we get a $15 dollar discount. :)
Step-by-step explanation:
The statements are
1.Draw Oa,Ob
2.OR is perpendicular to AB
3.OR is congruent to OR
4.OA is congruent to OB
5.Triangle AOR is congruent to BOR.
6.AR is congruent to AB.
The reasons are
1.Auxalaritly lines
2 Radius are perpendicular to tangent
3.Reflexitive
4.Radii of same circle are equal
5.HL theorem, (since we know hypotenuse and a leg)
6.CPCTC