Give an example of a problem in which the percent error is greater than 20%, but less than 50%. Explain how you determined the percent error. Please help me with this.

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?

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m