80% of the 6th graders at harrison middle school are going on a field trip to the museum there are 685 6th graders how many students are going on the field trip?

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

Find the quotient. 50a2 – 98b2 -5a +7b

What is the ratio of the length of an object in yards to the length of the same object in miles?