Answer these questions

1.) the ratio of two numbers is 3: 7. if the bigger number is 21, find these numbers.

2.) the ratio of boys to girls in grade 6 is 3: 5. if there are 320 grade 6 students, how many girls are there?

3.) the ratio of three numbers is 1: 3: 5. find these three numbers whose sum is 72.

4.) the difference of two numbers is 42. if their ratio is 11: 5, find the two numbers.

5.) the ratio of three numbers is 3: 5: 9. if the difference of the biggest and the smallest number is 420, what is the sum of the three numbers?

The graph of f(x), shown below, resembles the graph of g(x) = x2, but it has been changed somewhat. which of the following could be the equation of f(x)?

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale