C. 17 r 1 is the correct answer
The answer would be
130 degrees
We have 35 - 5 = 30 levels left to beat.
The question is asking us for the levels left to beat, to the ones that already have been beaten:
30 : 5
Simplified;
6 : 1
The area for rectangle is (l x w) or (length times width) or (length x width)
*just in case you get confused
so the length is 10, and the width is 2.5 so you plug in.
10 x 2.5 = 25
your answer is 25 mm²
hope this helps
