Ahobby shop sells 4 times as many model of airplanes than model helicopters the total number of model is 35

let's call airplanes "a" and helicopters "h".

The total number of models is 35. This means that a+h=35

4 times as many model airplanes as model helicopters. This means a=4h.

we can substitute this into the previous equation:

4h+h=35

5h=35

dividing by 5:

h=7

so he has 7 helicopters and 4*7=28 airplanes

which of the following can speed up the rate at which the liver breaks  

down alcohol?

question 1 options:

carbohydrates  

coffee  

nothing  

high-protein meals  

step-by-step explanation: