One kilogram is approximately equal to 2.21 pounds. Find the number of kilograms in 150 pounds. Round to the nearest tenth of a kilogram, if needed.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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 .

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school