Akira is folding a piece of paper that is 0.2 millimeters thick in half. The thickness of the paper doubles with each fold. Let n represent the fold number and t (n) represent the thickness of the paper.
Which exponential function represents this scenario?
A) t(n) = 1/2 (0.2)n
B) t(n) = 0.2(2)n
C) t(n) = 0.2(1/2)n
D) t(n) = 2(0.2)n

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest