When a spaceship full of scientists landed on Planet Q, they found that 17/40 of the 160 aliens had 3 eyes. How many aliens had 3 eyes?

68 out of 160 aliens have 3 eyes

Step-by-step explanation:

If 17 out of 40 aliens have 3 eyes, then

17 * 160 = 2720

40 * x = 40x

40x = 2720

- - - - - - - - - - - - -

Therefore 68 out of 160 aliens have 3 eyes

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.