please help me to answer this problems. thank you.

EXERCISE 2 The latest exchange rate of one Euro to Philippine peso is worth 51.54. A. Find a function f that gives the Philippine peso value f(x) of Euro. B. Find the inverse of a function. C. How much Euro would 98,000 Philippine currency be worth? ENRICHMENT ACTIVITY 1. A particular bread of Tilapia has its weight W (in kg) re- lated to its Length L( in cm) modelled by the function W= (0.00324 L' ) . Explain why the function is one-to -one, even if it is a quadratic function. Find the inverse of this function and approximate the length of a single fish if its weight is 400 grams. 2. Women's Shoe Sizes The following table lists equivalent shoe sizes for women's shoes in the United States and Philippines. US 5 6 7 8 9 Phil 36 37 38 39 40 41 a. Determine a linear function S that can be used to convert a US women's shoe size x to its equivalent Philippine shoe size S(x). b. Find the inverse function and explain how it can be used. 3. The relationship between Kelvin (K) and Celsius (C) scales is given by K = C + 273. Determine the value of Celsius when K=345. the 6.5 EXERCISE 1 Men's Shoe Sizes The function Ph(x)=1.3x- 4.7 converts a man's shoe size in the United States to the equivalent shoe size in the Philippines. For instance, a man who wears a US size 12 shoes would wear a Ph shoes of size Ph(12)=1.3(12)-4.7 = 10.9 or 11. A. Determine the Ph shoe size for a man who wears a size 9 US shoe. B. Find Ph=1 .Use it to determine the mens US shoe size that corresponds To a Ph shoe size of 5