Juans class has 10 girls and 15 boys. the ratio of girls to boys in steven’s class is the same as the ratio of girls to juans class. there are 21 boys in stevens class. write a proportion that can be used to find the number of girls, g,im stevens class.

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

If g(x) is an odd function, which function must be an even function?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?