A blueprint is a scale drawing of a building. The dimensions of the blueprint for Patricia's doll house are 14 of the measurements of the actual doll house. The floor of the doll house has an area of 864 square inches. If the width of the doll house is 23 the length, what are the dimensions of the floor on the blueprint of the doll house?

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Need on this one asap im almost done with this subject

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.