PLS HELP ASAP GIVING BRAINLIEST TO RIGHT AWNSER

Mary had at least an 80% on her test write an inequality to represent this situation

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Consider the function y = f(x)=3^x the values of f(1/2) and f(1/4). rounded to the nearest hundredth, are__and__ respectively