Find the percent of increase from 30 to 39. Round to the nearest tenth of a percent if necessary.

A. 30%

B. 76.9%

C. 23.1%

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Me because some of question i don’t understand

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =