Explain how to find 40*50 using mental math?

See Explanation

Step-by-step explanation:

We see that .  We can use this to find that .

2000

Step-by-step explanation:

 40

x 50

you multiply the 0 by 0 which is 0 and then you multiply the 0 by 4 and thats zero. then you multiply 5 by zero and then multiply five by 4 which is 20. that gives you 2000.

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.