Working together jacob and kayla can clan an attic in 4.24 hours. had she done it alone it would have taken kayla nine hours. how long would it take jacob to do alone?

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?

What is the quadric regression equation that fits these data

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog