30) Brenda has homework assignments in five subjects. She only has time to do two of them. How many different ways could she arrange her time? This is a combination.

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.