Answer:
63
Step-by-step explanation:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90.
A:63
Trinomial
degree of polynomial:2nd degree - Quadratic
104 ft^2
area of rectangle = 8 × 10 = 80
area of triangle = 1/2 × 6 × 8 = 24
∴total area = 104 ft^2