You should be prepared for a train to appear at a railroad crossing a. between 2 a. m. and 6 a. m. b. between 6 p. m. and 10 p. m. c. at any time d. at night

Can you me find area of the shaded region?

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

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?