Linear Functions Practice Test

A crew has paved a road length $L$ (in miles) after $d$ days, and the relationship is linear. They had completed 1.4 miles after 3 days and 5.0 miles after 11 days. To the nearest tenth, how many days will it take to reach 9.0 miles?

A store gift card balance $B$ (in dollars) decreases linearly by a constant daily subscription fee. The balance was 26 dollars on day 7 and -10 dollars on day 19. To the nearest tenth, after how many days will the balance be 0 dollars?