Answer:
a + b
Step-by-step explanation:
ax + ay + bx + by
a(x +y) +b(x + y)
(a + b) ( x + y)
therefore (a + b) ( x + y) divide x+y
x + y is canceled out both in the denominator and numerator
= a+b
Answer:
First, you would find the area of the trapezoid (I assume), then you would find the area of the circle. Then subtract the area of the circle from the area of trapezoid. Use the following equation:
Area of trapezoid - Area of circle
If each artist shows more than 1 painting. So the minimum number of painting per artist is 2. So if every artist show same number of painting so maximum number of artists is 30/2=15