Which of the following portions are true A. 20/48 = 40/90
B. 25/40 = 48/80
C. 18/48 = 27/72
D. 12/15 = 21/25

The measure of an angle is 117°. what is the measure of a supplementary angle?

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?