PLEASE HELP
STUV is A parallelogram find the measurement of angle S

Write each expression in exponential form and find its value. 2 x 2 x 2 x 2

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

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.