Heeelppp~ I beg you, I'm crying~ because I have been waiting for a long time now and I have asked this question multiple times and I don't get an answer~ help me

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 .

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read