in her job as a civil engineer, lucia oversees several large road and bridge improvement projects each year…

in her job as a civil engineer, lucia oversees several large road and bridge improvement projects each year and tracks the cost of each project. this graph shows the total cost of all of lucias projects by project type over the last three years. lucias projects project type roadway resurfacing roadway rehabilitation roadway reconstruction bridge rehabilitation bridge reconstruction cost (millions) $0 $1.0 $2.0 $3.0 $4.0 $5.0 year 1 year 2 year 3 select all the project types in which the total cost decreased each year over the last three years. roadway resurfacing roadway rehabilitation roadway reconstruction bridge rehabilitation bridge reconstruction
Answer
Explanation:
Step1: Analyze roadway resurfacing
In roadway resurfacing, the bar - lengths (costs) decrease from Year 1 to Year 2 and from Year 2 to Year 3.
Step2: Analyze roadway rehabilitation
In roadway rehabilitation, the bar - lengths (costs) decrease from Year 1 to Year 2 and from Year 2 to Year 3.
Step3: Analyze roadway reconstruction
In roadway reconstruction, the bar - lengths (costs) decrease from Year 1 to Year 2 and from Year 2 to Year 3.
Step4: Analyze bridge rehabilitation
In bridge rehabilitation, the bar - lengths (costs) decrease from Year 1 to Year 2 and from Year 2 to Year 3.
Step5: Analyze bridge reconstruction
In bridge reconstruction, the bar - lengths (costs) decrease from Year 1 to Year 2 and from Year 2 to Year 3.
Answer:
roadway resurfacing, roadway rehabilitation, roadway reconstruction, bridge rehabilitation, bridge reconstruction