A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25 a square foot, how much will it cost for the concrete?

A. $276.40

B. $1,247.08

C. $1,714.07

D. $1,174.70

Why is toronto and vancover more important to trade than calgary and edmonton?

What is a possible result of increased irrigation and agricultural fields? a. depletion of water resources b. increased nutrients in soil c. decreased need for fertilizers d. increased use of pesticides e. no change in crop yield

Most of the population in East Asia is clustered: A. in the cities of Seoul, Taiwan and H-o Chi Minh B. along the southeast edge of Mongolia C. in central China D.

List and describe the achievements of the Maya during the Preclassic and Classic periods.

Any size group of interacting parts that form a complex whole is a (n) ... blink ... A. Sphere B. Energy source C. Tectonic plate D. System

Why are environmental issues a major concern for people of Sub-Saharan Africa?

Which revelation resulted from the observation of the spectrum of different galaxies? A. there were more galaxies whose spectrum was blueshifted B. there were no galaxies whose spectrum was redshifted C.

Why are people are able to live in deserts, mountains, and tundras?

What is the essential feature of data stored by geographical information systems? 1. The data relates to land use. 2. The data is linked to locations. 3. The data relates to geographical formations. 4. The data is linked to a specific time.

How temperature and density change from the crust to the core