What equation is a proportion?

7/9 = 21=28
1/3 = 1/4
5/8 = 20/32
3/4 = 6/9

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Which of these triangle pairs can be mapped to each other using a single translation? cof hn