Acoin was flipped 30 times. side frequency heads 12 tails 18 is the experimental or theoretical probability higher for the coin landing heads side up?

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 .

Ineed to know the answer to this algebra question.

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?