3.48 ×9.673 estimate answer using rounding? please explain ty

What is the ratio for the surface areas of rectangle prisims shown below given that they are similar and that the ratio of their edge lengths is 7: 3

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i