A circular piece of metal has a radius of 3. 5 meters. The metal sells for $3. 25 per m². What is the total cost of the circular piece of metal? use 3. 14 for pi.

Carlo is wondering what causes plants to grow at different rates. carlo’s hypothesis is “plants will grow more when the day is longer.” what would be the difference between the test group and the control group in this experiment? type of soil type of plants exposure to sunlight method for measuring the growth

Jerrold has to buy 12 copies of a textbook which costs $36.25 per copy. how much must he spend for them?

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.