Can someone help me solve #3 & 4 using dimensional analysis please? Thank u! Question 3 and 4 use a time of 300 years and map scale of 3.5 cm = 2 km Using the map scale given to convert to km in the real world. Once you have offset in real world numbers, convert into a velocity using the time given. 3. Measured offset of 76mm. 4. Measured offset of 32cm. 1 mile = 5280 ft. 1 mile = 1.61 km 1 ft. = 12 inches 1 inch = 2.54 cm 1km = 1000m 1m =100cm 1cm = 10mm