Calculate unit rates to solve each problem.
1. cara can run 3 miles in 27 minutes. melanie can run
6 miles in 53 minutes. who can run faster?
let c represent cara's speed and m represent melanie's speed.
equivalent ratio i: .
equivalent ratio 2:
can run faster.
how runs more in confused?

Solve the system of equations. y= 2x y= x^2 - 15

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?