Yu, nailah, and elena each bought between 7 and 9 yards of ribbon. yu bought 3 pieces of ribbon. nailah bought 5 pieces of ribbon. elena bought 6 pieces of ribbon. the lengths of ribbons are given below.

drag ribbons to the box below each person's name to show what they could have bought.

Weak stimulus will cause a weak action potential. the stronger the stimulus, the stronger the action potential. a. true b. false

Why is it essential to operationally define the variables in a study?

Afootball game between the thunder and the sharks is in its closing minutes, with the thunder ahead by 20 points. the thunder’s coach considers sending in the second-string quarterback. this would reduce the risk of the star quarterback getting injured, but the second-string quarterback is not very good. complete the passage describing the coach’s decision in economic terms.