Keith is planning to drive from los angeles to san francisco. he measured a distance of 5 inches between the two cities on the national map in his road atlas. a scale of 1 inch: 80 miles is displayed on this map.

what does this scale mean?

See Below

Step-by-step explanation:

1 inch:80 miles this is the scale of the map

It means that 1 inches on the map is 80 miles in real life.

So, 5 inches [distance from Los Angeles to San Francisco] would be

5 * 80 = 400 miles in real life

So, it also tells us that the Distance from Los Angeles to San Francisco is 400 miles

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points