John is trying to escape a ditch. every times he jumps 10 meters, he falls back 5 meters right after. the ditch is 19 meters long. what is the minimum number of jumps he needs to make to escape?

1 jump + 1 fall back moves him forward 10 - 5 = 5 metres

So continuing in this fashion his distance from start is:-

1 jump :- 5 metres

2 jumps :- 10 metres

- at this point he is 9 metres from escaping from the ditch so his 10 metre jump will take him out.

So the answer is 3 jumps.

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

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.