Can someone me solve these three? i understood it in the notes but the examples in our notes were much less "complex" than these. i kind of started the first two but got confused and the third one i don't even know how to start. you in (this is for my ap calc class btw)

Ayellow line means traffic on either side may cross the center line to pass another vehicle. a. single solid b. double solid c. single broken d. double broken

Drivers must always yield to emergency vehicles traveling

Mrs. foyle told yolanda that her test had 38 problems worth a total of 100 points. each test problem is worth either 5 points or 2 points. yolanda wanted to determine how many 2-point and how many 5-point questions are on the test. in the space below, determine how many questions of each point-value are on the test. show your work or provide an explanation to support your answer. need this asap