Tom simplified an expression in three steps, as shown below: Which is the first incorrect step and why?

A). Step 1: all the exponents are increased by 4

B). Step 2: the exponents of the same base are added during multiplication

C). Step 3: the exponents of the same base are subtracted during division

D). Step 3: all the exponents are added during division

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.