A geologist drew a scale drawing of a section of a quartz layer she saw in a cliff. The
scale drawing of the layer is 2 cm high and 24 cm long. If the actual layer is 0.15 m
high, what is the area of the actual quartz layer section she saw?

Which number line correctly shows 0.8 + 0.3?

Find the interior angle of a regular polygon which has 6 sides

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.