2 x 10^2 because 2 x 10^2 is 200 in standard form and 200 is greater than 1.
24 x 21 is 504. to make a model, just make it 24 x 21 (length x width)
Tom is correct, and Dan is wrong. A quadrilateral is a closed figure with four sides, for example, like a kite. A parallelogram is a four sided rectangular figure with opposite sides that are parallel.
I believe the answer would be 150.75 cm as Marks height. I got this by if Bradley is the tallest, he would be 152.0 and if Calvin is taller than Josh, who is the shortest, the only height left would be Marks at 150.75
