Answer: In 35 ways Jasmine can draw a blue or yellow marble from the jar
Explanation:
Total marbles in the jar=number of blue marbles+number of yellow marbles=28+7=35.
The number of ways of drawing a blue or yellow marbles is given by

Here n=35 and r=1
Therefore,

Thus in 35 ways Jasmine can draw a blue or yellow marble from the jar.