A cheetah was racing a gazelle and a lion. For every 5/2 of a mile the cheetah ran, the gazelle ran 1/6 of a mile and the lion ran 3/4 of a mile. if the cheetah ran 20 miles, how many miles did the gazelle and lion run? please im so *not intelligent*

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Can some one me with these questions

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