Aset of test scores is normally distributed with a mean of 78 and a standard deviation of 4.5. dwayne scored 87 on the test. what is his percentile score?

a.97.5 percentile

b.99.85 percentile

c.87 percentile

d.47.5 percentile

3. solve the given inequality and graph the solution on a number line.

What is the solution to the equation 9^(x+1) =27

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply