Coach drinks a grande size of starbucks brewed coffee every morning during his 7: 00 drive to school. according to the website energyfind. com, there are 330mg of caffeine in coachs coffee and 13% of the caffeine in our bodies is eliminated each hour. how much caffeine is in coachs system when football practice begins at 3: 30?

Which pair of angles are vertical angles? ∠1 and ∠4 ∠1 and ∠2 ∠2 and ∠4 ∠2 and ∠3

Anyone know? will mark brainliest if you're correct!

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true