Check each true statement about the number 7 is the real part of the number. is the imaginary part of the number. is the coefficient of . This number is the sum of a real number and an imaginary number.

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.

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²