What is this?
I need help

Simply 8x squared + 5(7x squared- x) - 2x =

Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'