(07.09) Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below: (1 point)
f(x) = 2x + 21
g(x) = x - 24
Select one:
a. -27
b. -21
c. 6
d. 48

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

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?

What point is the projection of q on a) r b) s c) t