Elizabeth, heather, and erin share the same birthday. they’ve decided to join together to have one big birthday party. the event location says it will cost $70 for the rental of the space and $15 per guest. each girl invites x number of guests, including themselves in their guest count.
the girls have each written a different correct expression to represent the total cost of the party. explain how each of the 3 expressions below represents the total cost.
(a) elizabeth’s expression: 15x + 15x + 15x + 70
(b) heather’s expression: 15(x + x + x) + 70
(c) erin’s expression: x(15 + 15 + 15) + 70

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.

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3