Final answer:
To find the total number of jazz records sold all year, multiply the number of sales in March by 7.
Step-by-step explanation:
To find the total number of jazz records sold all year, we need to multiply the number of sales in March by 7. Since March sales accounted for 1/7 of the total number of jazz records sold all year, multiplying the number of March sales by 7 will give us the total.
Let's say that the number of jazz records sold in March was x. Then, 1/7 of the total number of jazz records sold all year is equal to x. To find the total, we multiply x by 7.
Total = (x)*(7) = 7x