HELP pls ASAP Which phrase describes the algebraic expression 3 x minus 4? the sum of three times a number and four four less than three times a number the quotient of three times a number less four the difference between four and three

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?