Tanya has 3/5 of a muffin left from breakfast. she wanted to give caleb 1/2 of it. how much of a whole muffin will caleb get?

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

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?