Arecent survey found that 7 out of 9 students eat lunch once a week. if 450 students were surveyed, how many eat school lunch at least once a week

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 .

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

2/3(-6y+9x) expand each expression using the distributive property