A taxi company's charge for a single taxi journey can be calculated using the formula C = 2.7 + 1.5d, where C is the cost in pounds) and d is the distance travelled (in km). State what the value 2.7 represents in the context of the question.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true