Kristen purchased a used car for $7,550 and had to pay 8
3
4
% sales tax. How much tax did she pay?
Answer
Kristen paid $
in tax

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class