X = 3 - y
5x - 12 = y

Using the two equations above, solve for y
a. y = 0.5
b. y = 2.5
c. y = -2
d. y = 5.5

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4