What information could you use to solve the word problem below? Check all that apply
- STEP 1: UNDERSTAND
The Math Club had 6 different drivers available to
test their soap box racer. Each day after school, 3
new drivers tested the racer. How many days did it
take for all the drivers to test the racer?
A. The drivers tested the racer after school.
B. There were 6 different drivers.
C. How many days it took for all drivers to test
D. Each day, 3 new drivers tested the racer.

part a: 1.08

part b: 27.59

asnwer is (g o h o f)(x) = 2x - 6/x + 7

step-by-step explanation:

given,

f(x) = x - 3/x

g(x) = x + 3

h(x) = 2x + 1

we need to find : (g o h o f)(x)

we can write (g o h o f)(x) = g[ h{ f(x) } ]

so first we find h{f(x)}

h{f(x)} = f(x) + 3 = (x - 3/x) + 3

h{f(x)} = x - 3/x + 3

now we find g[ h{ f(x) } ].

g[ h{ f(x) } ] = g(x - 3/x + 3)       {plug h{f(x)} = x - 3/x + 3 in g[h{f(x)}] }

g(x - 3/x + 3) = 2 (x - 3/x + 3) + 1

                    = 2x - 6/x + 6 + 1

                    = 2x - 6/x + 7

hence we get (g o h o f)(x) = 2x - 6/x + 7

5 feet of chain cost $9

so the answer is 1.80