7. The side lengths of triangle ABC are: AB=1 unit, AC=1 unit, BC=2‾√ units A
B
=
1

unit
,

A
C
=
1

unit
,

B
C
=
2

units
. What is the value of tan(B)

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?

P= price tax is 4% added to the price. which expression shows the total price including tax?

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km