The number f of miles a ship is from its destination x hours after starting a voyage is given by f(x)=80−20x. The number f of miles a submarine is from its destination x hours after leaving port is shown in the graph below. State the distance and length of time of each voyage.

answer: i think you should do the math and pay attention in class : )

step-by-step explanation:

that is truly what   think but if i get the answer i will

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20