The following table shows the number of bedrooms and bathrooms 90 students in a class have in their house.
A1 A2 A3 Total
B1 3 7 7 17
B2 8 16 9 33
B3 14 11 15 40
Total 25 24 31 90

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me