Which one please help y’all

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.