Ms. anderson traveled from nashville, tennessee, to kansas city, missouri. her trip was 480 miles and took 7 hours 30 minutes. which trip represents the same rate of travel? a). 120 miles in 2 hoursb). 192 miles in 3 hoursc). 100 in 1 hour 30 minutesd). 240 miles in 3 hours 15 minutesi know the answer but i don't know how to do the work. could someone me

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to