The formula for glue says to add 50ml of hardener to each container of resin. how much hardener should be added to 15 containers of resin?

Solve |2x - 5| = 4 if anyone could , that would be great

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary