Pus The time, t, required to drive a certain distance varies inversely with the
speed, r. If it takes 2 hours to drive the distance at 30 miles per hour, how long
will it take to drive the same distance at 50 miles per hour?

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.