there are 50 marbles in a bag. 35 of the marbles are brown. otti takes at random a marble from the bag. he records the colour of the marble and puts the marble back in the bag. he does this 300 times. work out an estimate for the number of brown marbles he takes.​

are you sure this is middle schools math? ?

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

18.75 gallons

step-by-step explanation:

sure i'm up for it

step-by-step explanation: