Ineed really the 2 problems are attached!

6,common difference

nth term== 6n-1

Step-by-step explanation:

an=a1+(n-1)d  -formula to find nth term

to find common difference subtract 11-5=6,or 17-11=6

now substitute an=nth term

a1=1st term in sequence

d=common difference

so

an=6(+n-1)+5

distribute

an=6n-6+5

an=6n-1

hope this helps plz vote my answer the brainiest if it does!

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.