Which expression is equivalent to the area of square A, in square centimeters?

3 squares are positioned to form a triangle. The small square is labeled 24 centimeters, medium square is 45 centimeters, and large square is not labeled.
One-half (24) (45)
24 (45)
(24 + 45) squared
24 squared + 45 squared

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

What is the value of r of the geometric series?

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?