Answer:
280cm
Step-by-step explanation:
Given data
Robound= 70%
Initial height= 400cm
Let us calculate the final height after the rebound
=70/100*400
=0.7*400
=280cm
Hence the new height after the rebound is
x=4
3x-3=9
+3=+3
3x=12
divide both sides by 3
leaving x by itself
12/3=4
179 + 49+ 139 = 367
the cost in dollars is $15.84
Answer : V≈1017.88cm³
