Please help and explain, ill give brainliest and 60 points i keep getting -7, but non of the options are -7 Please help and explain, ill give brainliest and 60 points

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?