Shelly has $250 to shop for jeans and sweaters. Each pair of jeans costs $20, and each sweater costs $15, and she buys 15 items. Determine the number of pairs of jeans and sweaters Shelly bought.

x=5   y=10

Step-by-step explanation:

20x+15y=250

x+y=15y= -x+15

20x+15(-x+15)=250

20x-15x+225=250

5x=25

x=5

20(5)+15y=250

100+15y=250

15y=150

y=10

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.