assuming 2hrs is 120mins and 120mins is 7200sec divide 7200 by 3 which is 2400

Parallelogram

rectangle

triangle

square

**Answer:**

**Step-by-step explanation:**

set up a proportion comparing miles per hour to miles per hour. Then cross multiply and solve for the missing term.

845/13 = 455/x

845x = 13(455)

x = 13(455)/845

x = 7

**Answer: 7 hours**

**Answer:**

4x(20x+12)

**Step-by-step explanation:**

2x(4x ·5+12)·2

Multiply: 5·4=20

Multiply: 2·2=4

Which equals 4x(20x+12)