1. A rectangle has a length of 12 meters and a width of 400 centimeters. What is
the perimeter, in cm, of the rectangle?
A. 824 cm
B. 1,600 cm
C. 2,000 cm
D. 3,200 cm

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).