1. Ashley invested $210 in a saving account with an 8% interest rate. How much interest will she earn after 7
years?
What is the interest rate

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Reflect the point (7,0) across the y-axis

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1