Simplify 3^-9 over 3^-12

Of the stamps in Malee's collection, 12/35 are from Asia. Of these Asian stamps, 5/16 are from Thailand. What fraction of Malee's stamps are from Thailand?

Neela's clock is broken. The minute hand rotates around the clock correctly, but the hour hand is stuck in the three o'clock position. Suppose Neela first looks at the clock when the hands are aligned and it shows 3:15.

The volume of a rectangular prism is 2,058 cubic cm. The length of the prism is 3 times the width. The height is twice the width. Find the length of the prism.

on a 15 hour trip, Rob drove 35% of the time and Mark drove the reminder of the time. how many hours did Mark dive?

What is the first task in using the step approach to finding the greatest common divisor

Taylor took a test in both biology and math last week. the biology test had a mean of 70 and a standard deviation of 7 whereas the math test had a mean of 75 and a standard deviation of 10.

Kia thinks that every number has at least two factors. Which explains whether Kia is correct?

A $310 suit is marked down by 10%. Find the sales price.

Is 12x=7y-10y a linear equation?

Which of the items below is not an example of a fixed cost?