The area of a parallelogram is base x height, or A = bh.
a) A = 6 x 10, so A = 60 cm²
b) A = 15 x 8, so A = 120 cm²
In 6 hours the temperature went down 18 degrees.
Divide -18 degrees / 6 hours = -3.
-3 degrees per hour.
15/40 can be divided evenly by 5 to get, 5/8, which is the simplest form.
