Ms. Lopez started a coding club at school. of the students were 7th graders.
1 of the students were gon graders.
The rest of the students were 64
graders.
If 20 students joined the coding club,
how many of the students were 6
graders?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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?