0 points The perimeter of an equilateral triangle with side length x-3 can be
represented by the expression 3(x-3) and the perimeter of a square with
side length 2x+1 can be represented by the expression 4(2x+1). Which of
the following expressions represents the total perimeter of the two
shapes? *
11x + 5
O 11x-5
O 5x + 13
O 3x-2

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

You coordinate volunteers for litter cleanup in local parks. your spreadsheet lists drivers and the number of seat belts in each driver’s car. the spreadsheet calculates the number of drivers (d) and the total number of seat belts (s). you want to know the maximum number of volunteers, besides drivers, that can be transported to the park in a single trip given that each person must have a seat belt of their own.