10 POINTS AND BRAINLIEST Suppose your friend says he can solve the equation 15-2x+6=127x-4 by first using the Multiplication Property of Equality to multiply each side of the equation by 2. Is he correct? Justify your response.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?