Brianna has twice as many sneakers as Keyla. Diamond though, as 4 times as many sneakers as Brianna. If together they have 21 sneakers, how many does each have?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Find the interior angle of a regular polygon which has 6 sides

Pls as soon as ! will award brainliest and 20 ! also the answer is not 22.5 degrees! find the value of x in each case: