Which expression is quivalent to 3y- 2 + 2y +7 - y

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

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 .

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.